gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3     Author: Dave Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32 #include "pbd/stateful_diff_command.h"
  33
  34 #include "ardour/playlist.h"
  35 #include "ardour/tempo.h"
  36 #include "ardour/midi_region.h"
  37 #include "ardour/midi_source.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40 #include "ardour/session.h"
  41
  42 #include "evoral/Parameter.hpp"
  43 #include "evoral/Control.hpp"
  44
  45 #include "automation_region_view.h"
  46 #include "automation_time_axis.h"
  47 #include "canvas-hit.h"
  48 #include "canvas-note.h"
  49 #include "canvas-program-change.h"
  50 #include "ghostregion.h"
  51 #include "gui_thread.h"
  52 #include "keyboard.h"
  53 #include "midi_cut_buffer.h"
  54 #include "midi_list_editor.h"
  55 #include "midi_region_view.h"
  56 #include "midi_streamview.h"
  57 #include "midi_time_axis.h"
  58 #include "midi_time_axis.h"
  59 #include "midi_util.h"
  60 #include "public_editor.h"
  61 #include "selection.h"
  62 #include "simpleline.h"
  63 #include "streamview.h"
  64 #include "utils.h"
  65
  66 #include "i18n.h"
  67
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace Editing;
  71 using namespace ArdourCanvas;
  72 using Gtkmm2ext::Keyboard;
  73
  74 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  75                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  76         : RegionView (parent, tv, r, spu, basic_color)
  77         , _force_channel(-1)
  78         , _last_channel_selection(0xFFFF)
  79         , _default_note_length(1.0)
  80         , _current_range_min(0)
  81         , _current_range_max(0)
  82         , _model_name(string())
  83         , _custom_device_mode(string())
  84         , _active_notes(0)
  85         , _note_group(new ArdourCanvas::Group(*parent))
  86         , _delta_command(0)
  87         , _diff_command(0)
  88         , _mouse_state(None)
  89         , _pressed_button(0)
  90         , _sort_needed (true)
  91         , _optimization_iterator (_events.end())
  92         , _list_editor (0)
  93         , no_sound_notes (false)
  94 {
  95         _note_group->raise_to_top();
  96 }
  97
  98 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  99                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
 100                 TimeAxisViewItem::Visibility visibility)
 101         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 102         , _force_channel(-1)
 103         , _last_channel_selection(0xFFFF)
 104         , _default_note_length(1.0)
 105         , _model_name(string())
 106         , _custom_device_mode(string())
 107         , _active_notes(0)
 108         , _note_group(new ArdourCanvas::Group(*parent))
 109         , _delta_command(0)
 110         , _diff_command(0)
 111         , _mouse_state(None)
 112         , _pressed_button(0)
 113         , _sort_needed (true)
 114         , _optimization_iterator (_events.end())
 115         , _list_editor (0)
 116         , no_sound_notes (false)
 117
 118 {
 119         _note_group->raise_to_top();
 120 }
 121
 122
 123 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 124         : sigc::trackable(other)
 125         , RegionView (other)
 126         , _force_channel(-1)
 127         , _last_channel_selection(0xFFFF)
 128         , _default_note_length(1.0)
 129         , _model_name(string())
 130         , _custom_device_mode(string())
 131         , _active_notes(0)
 132         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 133         , _delta_command(0)
 134         , _diff_command(0)
 135         , _mouse_state(None)
 136         , _pressed_button(0)
 137         , _sort_needed (true)
 138         , _optimization_iterator (_events.end())
 139         , _list_editor (0)
 140         , no_sound_notes (false)
 141 {
 142         Gdk::Color c;
 143         int r,g,b,a;
 144
 145         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 146         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 147
 148         init (c, false);
 149 }
 150
 151 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 152         : RegionView (other, boost::shared_ptr<Region> (region))
 153         , _force_channel(-1)
 154         , _last_channel_selection(0xFFFF)
 155         , _default_note_length(1.0)
 156         , _model_name(string())
 157         , _custom_device_mode(string())
 158         , _active_notes(0)
 159         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 160         , _delta_command(0)
 161         , _diff_command(0)
 162         , _mouse_state(None)
 163         , _pressed_button(0)
 164         , _sort_needed (true)
 165         , _optimization_iterator (_events.end())
 166         , _list_editor (0)
 167         , no_sound_notes (false)
 168 {
 169         Gdk::Color c;
 170         int r,g,b,a;
 171
 172         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 173         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 174
 175         init (c, true);
 176 }
 177
 178 void
 179 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 180 {
 181         CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 182                                                          ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 183                                                          gui_context());
 184
 185         if (wfd) {
 186                 midi_region()->midi_source(0)->load_model();
 187         }
 188
 189         _model = midi_region()->midi_source(0)->model();
 190         _enable_display = false;
 191
 192         RegionView::init (basic_color, false);
 193
 194         compute_colors (basic_color);
 195
 196         set_height (trackview.current_height());
 197
 198         region_muted ();
 199         region_sync_changed ();
 200         region_resized (ARDOUR::bounds_change);
 201         region_locked ();
 202
 203         reset_width_dependent_items (_pixel_width);
 204
 205         set_colors ();
 206
 207         _enable_display = true;
 208         if (_model) {
 209                 if (wfd) {
 210                         display_model (_model);
 211                 }
 212         }
 213
 214         group->raise_to_top();
 215         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 216
 217         midi_view()->signal_channel_mode_changed().connect(
 218                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 219
 220         midi_view()->signal_midi_patch_settings_changed().connect(
 221                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 222 }
 223
 224 bool
 225 MidiRegionView::canvas_event(GdkEvent* ev)
 226 {
 227         PublicEditor& editor (trackview.editor());
 228
 229         if (!editor.internal_editing()) {
 230                 return false;
 231         }
 232
 233         static double drag_start_x, drag_start_y;
 234         static double last_x, last_y;
 235         double event_x, event_y;
 236         nframes64_t event_frame = 0;
 237         bool fine;
 238
 239         static ArdourCanvas::SimpleRect* drag_rect = 0;
 240
 241         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 242            to its items, which means that ev->type == GDK_SCROLL will never be seen
 243         */
 244
 245         switch (ev->type) {
 246         case GDK_SCROLL:
 247                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 248
 249                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 250                         change_velocities (true, fine, false);
 251                         return true;
 252                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 253                         change_velocities (false, fine, false);
 254                         return true;
 255                 } else {
 256                         return false;
 257                 }
 258                 break;
 259
 260         case GDK_KEY_PRESS:
 261
 262                 /* since GTK bindings are generally activated on press, and since
 263                    detectable auto-repeat is the name of the game and only sends
 264                    repeated presses, carry out key actions at key press, not release.
 265                 */
 266
 267                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 268                         _mouse_state = SelectTouchDragging;
 269                         return true;
 270
 271                 } else if (ev->key.keyval == GDK_Escape) {
 272                         clear_selection();
 273                         _mouse_state = None;
 274
 275                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 276
 277                         bool start = (ev->key.keyval == GDK_comma);
 278                         bool end = (ev->key.keyval == GDK_period);
 279                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 280                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 281
 282                         change_note_lengths (fine, shorter, start, end);
 283
 284                         return true;
 285
 286                 } else if (ev->key.keyval == GDK_Delete) {
 287
 288                         delete_selection();
 289                         return true;
 290
 291                 } else if (ev->key.keyval == GDK_Tab) {
 292
 293                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 294                                 goto_previous_note ();
 295                         } else {
 296                                 goto_next_note ();
 297                         }
 298                         return true;
 299
 300                 } else if (ev->key.keyval == GDK_Up) {
 301
 302                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 303                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 304
 305                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 306                                 change_velocities (true, fine, allow_smush);
 307                         } else {
 308                                 transpose (true, fine, allow_smush);
 309                         }
 310                         return true;
 311
 312                 } else if (ev->key.keyval == GDK_Down) {
 313
 314                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 315                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 316
 317                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 318                                 change_velocities (false, fine, allow_smush);
 319                         } else {
 320                                 transpose (false, fine, allow_smush);
 321                         }
 322                         return true;
 323
 324                 } else if (ev->key.keyval == GDK_Left) {
 325
 326                         nudge_notes (false);
 327                         return true;
 328
 329                 } else if (ev->key.keyval == GDK_Right) {
 330
 331                         nudge_notes (true);
 332                         return true;
 333
 334                 } else if (ev->key.keyval == GDK_Control_L) {
 335                         return true;
 336
 337                 } else if (ev->key.keyval == GDK_r) {
 338                         /* if we're not step editing, this really doesn't matter */
 339                         midi_view()->step_edit_rest ();
 340                         return true;
 341                 }
 342
 343                 return false;
 344
 345         case GDK_KEY_RELEASE:
 346                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 347                         _mouse_state = None;
 348                         return true;
 349                 }
 350                 return false;
 351
 352         case GDK_BUTTON_PRESS:
 353                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 354                         _pressed_button = ev->button.button;
 355                         _mouse_state = Pressed;
 356                         return true;
 357                 }
 358                 _pressed_button = ev->button.button;
 359                 return true;
 360
 361         case GDK_2BUTTON_PRESS:
 362                 return true;
 363
 364         case GDK_ENTER_NOTIFY:
 365                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 366                 Keyboard::magic_widget_grab_focus();
 367                 group->grab_focus();
 368                 break;
 369
 370         case GDK_MOTION_NOTIFY:
 371                 event_x = ev->motion.x;
 372                 event_y = ev->motion.y;
 373                 group->w2i(event_x, event_y);
 374
 375                 // convert event_x to global frame
 376                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 377                 trackview.editor().snap_to(event_frame);
 378                 // convert event_frame back to local coordinates relative to position
 379                 event_frame -= _region->position();
 380
 381                 switch (_mouse_state) {
 382                 case Pressed: // Drag start
 383
 384                         // Select drag start
 385                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 386                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 387                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 388                                 last_x = event_x;
 389                                 last_y = event_y;
 390                                 drag_start_x = event_x;
 391                                 drag_start_y = event_y;
 392
 393                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 394                                 drag_rect->property_x1() = event_x;
 395                                 drag_rect->property_y1() = event_y;
 396                                 drag_rect->property_x2() = event_x;
 397                                 drag_rect->property_y2() = event_y;
 398                                 drag_rect->property_outline_what() = 0xFF;
 399                                 drag_rect->property_outline_color_rgba()
 400                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 401                                 drag_rect->property_fill_color_rgba()
 402                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 403
 404                                 _mouse_state = SelectRectDragging;
 405                                 return true;
 406
 407                         // Add note drag start
 408                         } else if (editor.current_mouse_mode() == MouseRange) {
 409                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 410                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 411                                 last_x = event_x;
 412                                 last_y = event_y;
 413                                 drag_start_x = event_x;
 414                                 drag_start_y = event_y;
 415
 416                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 417                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 418
 419                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 420                                                 midi_stream_view()->y_to_note(event_y));
 421                                 drag_rect->property_x2() = event_x;
 422                                 drag_rect->property_y2() = drag_rect->property_y1()
 423                                                          + floor(midi_stream_view()->note_height());
 424                                 drag_rect->property_outline_what() = 0xFF;
 425                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 426                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 427
 428                                 _mouse_state = AddDragging;
 429                                 return true;
 430                         }
 431
 432                         return false;
 433
 434                 case SelectRectDragging: // Select drag motion
 435                 case AddDragging: // Add note drag motion
 436                         if (ev->motion.is_hint) {
 437                                 int t_x;
 438                                 int t_y;
 439                                 GdkModifierType state;
 440                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 441                                 event_x = t_x;
 442                                 event_y = t_y;
 443                         }
 444
 445                         if (_mouse_state == AddDragging)
 446                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 447
 448                         if (drag_rect) {
 449                                 if (event_x > drag_start_x)
 450                                         drag_rect->property_x2() = event_x;
 451                                 else
 452                                         drag_rect->property_x1() = event_x;
 453                         }
 454
 455                         if (drag_rect && _mouse_state == SelectRectDragging) {
 456                                 if (event_y > drag_start_y)
 457                                         drag_rect->property_y2() = event_y;
 458                                 else
 459                                         drag_rect->property_y1() = event_y;
 460
 461                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 462                         }
 463
 464                         last_x = event_x;
 465                         last_y = event_y;
 466
 467                 case SelectTouchDragging:
 468                         return false;
 469
 470                 default:
 471                         break;
 472                 }
 473                 break;
 474
 475         case GDK_BUTTON_RELEASE:
 476                 event_x = ev->motion.x;
 477                 event_y = ev->motion.y;
 478                 group->w2i(event_x, event_y);
 479                 group->ungrab(ev->button.time);
 480                 event_frame = trackview.editor().pixel_to_frame(event_x);
 481
 482                 if (ev->button.button == 3) {
 483                         return false;
 484                 } else if (_pressed_button != 1) {
 485                         return false;
 486                 }
 487
 488                 switch (_mouse_state) {
 489                 case Pressed: // Clicked
 490                         switch (editor.current_mouse_mode()) {
 491                         case MouseObject:
 492                         case MouseTimeFX:
 493                                 clear_selection();
 494                                 break;
 495                         case MouseRange:
 496                                 create_note_at(event_x, event_y, _default_note_length);
 497                                 break;
 498                         default:
 499                                 break;
 500                         }
 501                         _mouse_state = None;
 502                         break;
 503                 case SelectRectDragging: // Select drag done
 504                         _mouse_state = None;
 505                         delete drag_rect;
 506                         drag_rect = 0;
 507                         break;
 508                 case AddDragging: // Add drag done
 509                         _mouse_state = None;
 510                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 511                                 const double x      = drag_rect->property_x1();
 512                                 const double length = trackview.editor().pixel_to_frame(
 513                                                         drag_rect->property_x2() - drag_rect->property_x1());
 514
 515                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 516                         }
 517
 518                         delete drag_rect;
 519                         drag_rect = 0;
 520                 default: break;
 521                 }
 522
 523         default: break;
 524         }
 525
 526         return false;
 527 }
 528
 529 void
 530 MidiRegionView::show_list_editor ()
 531 {
 532         if (!_list_editor) {
 533                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 534         }
 535         _list_editor->present ();
 536 }
 537
 538 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 539  * \param x horizontal position in pixels
 540  * \param y vertical position in pixels
 541  * \param length duration of the note in beats */
 542 void
 543 MidiRegionView::create_note_at(double x, double y, double length)
 544 {
 545         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 546         MidiStreamView* const view = mtv->midi_view();
 547
 548         double note = midi_stream_view()->y_to_note(y);
 549
 550         assert(note >= 0.0);
 551         assert(note <= 127.0);
 552
 553         // Start of note in frames relative to region start
 554         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 555         assert(start_frames >= 0);
 556
 557         // Snap length
 558         length = frames_to_beats(
 559                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 560
 561         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 562                         frames_to_beats(start_frames + _region->start()), length,
 563                         (uint8_t)note, 0x40));
 564
 565         view->update_note_range(new_note->note());
 566
 567         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 568         cmd->add(new_note);
 569         _model->apply_command(*trackview.session(), cmd);
 570
 571         play_midi_note (new_note);
 572 }
 573
 574 void
 575 MidiRegionView::clear_events()
 576 {
 577         clear_selection();
 578
 579         MidiGhostRegion* gr;
 580         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 581                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 582                         gr->clear_events();
 583                 }
 584         }
 585
 586         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 587                 delete *i;
 588         }
 589
 590         _events.clear();
 591         _pgm_changes.clear();
 592         _sys_exes.clear();
 593         _optimization_iterator = _events.end();
 594 }
 595
 596
 597 void
 598 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 599 {
 600         _model = model;
 601         content_connection.disconnect ();
 602         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 603
 604         clear_events ();
 605
 606         if (_enable_display) {
 607                 redisplay_model();
 608         }
 609 }
 610
 611
 612 void
 613 MidiRegionView::start_delta_command(string name)
 614 {
 615         if (!_delta_command) {
 616                 _delta_command = _model->new_delta_command(name);
 617         }
 618 }
 619
 620 void
 621 MidiRegionView::start_diff_command(string name)
 622 {
 623         if (!_diff_command) {
 624                 _diff_command = _model->new_diff_command(name);
 625         }
 626 }
 627
 628 void
 629 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 630 {
 631         if (_delta_command) {
 632                 _delta_command->add(note);
 633         }
 634         if (selected) {
 635                 _marked_for_selection.insert(note);
 636         }
 637         if (show_velocity) {
 638                 _marked_for_velocity.insert(note);
 639         }
 640 }
 641
 642 void
 643 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 644 {
 645         if (_delta_command && ev->note()) {
 646                 _delta_command->remove(ev->note());
 647         }
 648 }
 649
 650 void
 651 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 652                                  MidiModel::DiffCommand::Property property,
 653                                  uint8_t val)
 654 {
 655         if (_diff_command) {
 656                 _diff_command->change (ev->note(), property, val);
 657         }
 658 }
 659
 660 void
 661 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 662                                  MidiModel::DiffCommand::Property property,
 663                                  Evoral::MusicalTime val)
 664 {
 665         if (_diff_command) {
 666                 _diff_command->change (ev->note(), property, val);
 667         }
 668 }
 669
 670 void
 671 MidiRegionView::apply_delta()
 672 {
 673         if (!_delta_command) {
 674                 return;
 675         }
 676
 677         // Mark all selected notes for selection when model reloads
 678         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 679                 _marked_for_selection.insert((*i)->note());
 680         }
 681
 682         _model->apply_command(*trackview.session(), _delta_command);
 683         _delta_command = 0;
 684         midi_view()->midi_track()->playlist_modified();
 685
 686         _marked_for_selection.clear();
 687         _marked_for_velocity.clear();
 688 }
 689
 690 void
 691 MidiRegionView::apply_diff ()
 692 {
 693         if (!_diff_command) {
 694                 return;
 695         }
 696
 697         _model->apply_command(*trackview.session(), _diff_command);
 698         _diff_command = 0;
 699         midi_view()->midi_track()->playlist_modified();
 700
 701         _marked_for_velocity.clear();
 702 }
 703
 704 void
 705 MidiRegionView::apply_delta_as_subcommand()
 706 {
 707         if (!_delta_command) {
 708                 return;
 709         }
 710
 711         // Mark all selected notes for selection when model reloads
 712         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 713                 _marked_for_selection.insert((*i)->note());
 714         }
 715
 716         _model->apply_command_as_subcommand(*trackview.session(), _delta_command);
 717         _delta_command = 0;
 718         midi_view()->midi_track()->playlist_modified();
 719
 720         _marked_for_selection.clear();
 721         _marked_for_velocity.clear();
 722 }
 723
 724 void
 725 MidiRegionView::apply_diff_as_subcommand()
 726 {
 727         if (!_diff_command) {
 728                 return;
 729         }
 730
 731         // Mark all selected notes for selection when model reloads
 732         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 733                 _marked_for_selection.insert((*i)->note());
 734         }
 735
 736         _model->apply_command_as_subcommand(*trackview.session(), _diff_command);
 737         _diff_command = 0;
 738         midi_view()->midi_track()->playlist_modified();
 739
 740         _marked_for_selection.clear();
 741         _marked_for_velocity.clear();
 742 }
 743
 744 void
 745 MidiRegionView::abort_command()
 746 {
 747         delete _delta_command;
 748         _delta_command = 0;
 749         delete _diff_command;
 750         _diff_command = 0;
 751         clear_selection();
 752 }
 753
 754 CanvasNoteEvent*
 755 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 756 {
 757         if (_optimization_iterator != _events.end()) {
 758                 ++_optimization_iterator;
 759         }
 760
 761         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 762                 return *_optimization_iterator;
 763         }
 764
 765         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 766                 if ((*_optimization_iterator)->note() == note) {
 767                         return *_optimization_iterator;
 768                 }
 769         }
 770
 771         return 0;
 772 }
 773
 774 void
 775 MidiRegionView::redisplay_model()
 776 {
 777         // Don't redisplay the model if we're currently recording and displaying that
 778         if (_active_notes) {
 779                 return;
 780         }
 781
 782         if (!_model) {
 783                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 784                 return;
 785         }
 786
 787         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 788                 (*i)->invalidate ();
 789         }
 790
 791         MidiModel::ReadLock lock(_model->read_lock());
 792
 793         MidiModel::Notes& notes (_model->notes());
 794         _optimization_iterator = _events.begin();
 795
 796         cerr << "++++++++++ MIDI REdisplay\n";
 797
 798         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 799
 800                 boost::shared_ptr<NoteType> note (*n);
 801                 CanvasNoteEvent* cne;
 802                 bool visible;
 803
 804                 if (note_in_region_range (note, visible)) {
 805
 806                         if ((cne = find_canvas_note (note)) != 0) {
 807
 808                                 cne->validate ();
 809
 810                                 CanvasNote* cn;
 811                                 CanvasHit* ch;
 812
 813                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 814                                         update_note (cn);
 815                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 816                                         update_hit (ch);
 817                                 }
 818
 819                                 if (visible) {
 820                                         cne->show ();
 821                                 } else {
 822                                         cne->hide ();
 823                                 }
 824
 825                         } else {
 826
 827                                 add_note (note, visible);
 828                         }
 829
 830                 } else {
 831
 832                         if ((cne = find_canvas_note (note)) != 0) {
 833                                 cne->validate ();
 834                                 cne->hide ();
 835                         }
 836                 }
 837         }
 838
 839
 840         /* remove note items that are no longer valid */
 841
 842         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 843                 if (!(*i)->valid ()) {
 844                         delete *i;
 845                         i = _events.erase (i);
 846                 } else {
 847                         ++i;
 848                 }
 849         }
 850
 851         display_sysexes();
 852         display_program_changes();
 853
 854         _marked_for_selection.clear ();
 855         _marked_for_velocity.clear ();
 856
 857         /* we may have caused _events to contain things out of order (e.g. if a note
 858            moved earlier or later). we don't generally need them in time order, but
 859            make a note that a sort is required for those cases that require it.
 860         */
 861
 862         _sort_needed = true;
 863 }
 864
 865 void
 866 MidiRegionView::display_program_changes()
 867 {
 868         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 869         if (!control) {
 870                 return;
 871         }
 872
 873         Glib::Mutex::Lock lock (control->list()->lock());
 874
 875         uint8_t channel = control->parameter().channel();
 876
 877         for (AutomationList::const_iterator event = control->list()->begin();
 878                         event != control->list()->end(); ++event) {
 879                 double event_time     = (*event)->when;
 880                 double program_number = floor((*event)->value + 0.5);
 881
 882                 // Get current value of bank select MSB at time of the program change
 883                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 884                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 885                 uint8_t msb = 0;
 886                 if (msb_control != 0) {
 887                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 888                 }
 889
 890                 // Get current value of bank select LSB at time of the program change
 891                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 892                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 893                 uint8_t lsb = 0;
 894                 if (lsb_control != 0) {
 895                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 896                 }
 897
 898                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 899
 900                 boost::shared_ptr<MIDI::Name::Patch> patch =
 901                         MIDI::Name::MidiPatchManager::instance().find_patch(
 902                                         _model_name, _custom_device_mode, channel, patch_key);
 903
 904                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 905
 906                 if (patch != 0) {
 907                         add_pgm_change(program_change, patch->name());
 908                 } else {
 909                         char buf[4];
 910                         snprintf(buf, 4, "%d", int(program_number));
 911                         add_pgm_change(program_change, buf);
 912                 }
 913         }
 914 }
 915
 916 void
 917 MidiRegionView::display_sysexes()
 918 {
 919         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 920                 Evoral::MusicalTime time = (*i)->time();
 921                 assert(time >= 0);
 922
 923                 ostringstream str;
 924                 str << hex;
 925                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 926                         str << int((*i)->buffer()[b]);
 927                         if (b != (*i)->size() -1) {
 928                                 str << " ";
 929                         }
 930                 }
 931                 string text = str.str();
 932
 933                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 934
 935                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 936
 937                 double height = midi_stream_view()->contents_height();
 938
 939                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 940                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 941
 942                 // Show unless program change is beyond the region bounds
 943                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 944                         sysex->hide();
 945                 } else {
 946                         sysex->show();
 947                 }
 948
 949                 _sys_exes.push_back(sysex);
 950         }
 951 }
 952
 953
 954 MidiRegionView::~MidiRegionView ()
 955 {
 956         in_destructor = true;
 957
 958         note_delete_connection.disconnect ();
 959
 960         delete _list_editor;
 961
 962         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 963
 964         if (_active_notes) {
 965                 end_write();
 966         }
 967
 968         _selection.clear();
 969         clear_events();
 970         delete _note_group;
 971         delete _delta_command;
 972 }
 973
 974 void
 975 MidiRegionView::region_resized (const PropertyChange& what_changed)
 976 {
 977         RegionView::region_resized(what_changed);
 978
 979         if (what_changed.contains (ARDOUR::Properties::position)) {
 980                 set_duration(_region->length(), 0);
 981                 if (_enable_display) {
 982                         redisplay_model();
 983                 }
 984         }
 985 }
 986
 987 void
 988 MidiRegionView::reset_width_dependent_items (double pixel_width)
 989 {
 990         RegionView::reset_width_dependent_items(pixel_width);
 991         assert(_pixel_width == pixel_width);
 992
 993         if (_enable_display) {
 994                 redisplay_model();
 995         }
 996 }
 997
 998 void
 999 MidiRegionView::set_height (double height)
1000 {
1001         static const double FUDGE = 2.0;
1002         const double old_height = _height;
1003         RegionView::set_height(height);
1004         _height = height - FUDGE;
1005
1006         apply_note_range(midi_stream_view()->lowest_note(),
1007                          midi_stream_view()->highest_note(),
1008                          height != old_height + FUDGE);
1009
1010         if (name_pixbuf) {
1011                 name_pixbuf->raise_to_top();
1012         }
1013 }
1014
1015
1016 /** Apply the current note range from the stream view
1017  * by repositioning/hiding notes as necessary
1018  */
1019 void
1020 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1021 {
1022         if (!_enable_display) {
1023                 return;
1024         }
1025
1026         if (!force && _current_range_min == min && _current_range_max == max) {
1027                 return;
1028         }
1029
1030         _current_range_min = min;
1031         _current_range_max = max;
1032
1033         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1034                 CanvasNoteEvent* event = *i;
1035                 boost::shared_ptr<NoteType> note (event->note());
1036
1037                 if (note->note() < _current_range_min ||
1038                     note->note() > _current_range_max) {
1039                         event->hide();
1040                 } else {
1041                         event->show();
1042                 }
1043
1044                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1045
1046                         const double y1 = midi_stream_view()->note_to_y(note->note());
1047                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1048
1049                         cnote->property_y1() = y1;
1050                         cnote->property_y2() = y2;
1051
1052                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1053
1054                         double x = trackview.editor().frame_to_pixel(
1055                                 beats_to_frames(note->time()) - _region->start());
1056                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1057                         double y = midi_stream_view()->note_to_y(event->note()->note())
1058                                 + ((diamond_size-2.0) / 4.0);
1059
1060                         chit->set_height (diamond_size);
1061                         chit->move (x - chit->x1(), y - chit->y1());
1062                         chit->show ();
1063                 }
1064         }
1065 }
1066
1067 GhostRegion*
1068 MidiRegionView::add_ghost (TimeAxisView& tv)
1069 {
1070         CanvasNote* note;
1071
1072         double unit_position = _region->position () / samples_per_unit;
1073         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1074         MidiGhostRegion* ghost;
1075
1076         if (mtv && mtv->midi_view()) {
1077                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1078                    to allow having midi notes on top of note lines and waveforms.
1079                  */
1080                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1081         } else {
1082                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1083         }
1084
1085         ghost->set_height ();
1086         ghost->set_duration (_region->length() / samples_per_unit);
1087         ghosts.push_back (ghost);
1088
1089         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1090                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1091                         ghost->add_note(note);
1092                 }
1093         }
1094
1095         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1096
1097         return ghost;
1098 }
1099
1100
1101 /** Begin tracking note state for successive calls to add_event
1102  */
1103 void
1104 MidiRegionView::begin_write()
1105 {
1106         assert(!_active_notes);
1107         _active_notes = new CanvasNote*[128];
1108         for (unsigned i=0; i < 128; ++i) {
1109                 _active_notes[i] = 0;
1110         }
1111 }
1112
1113
1114 /** Destroy note state for add_event
1115  */
1116 void
1117 MidiRegionView::end_write()
1118 {
1119         delete[] _active_notes;
1120         _active_notes = 0;
1121         _marked_for_selection.clear();
1122         _marked_for_velocity.clear();
1123 }
1124
1125
1126 /** Resolve an active MIDI note (while recording).
1127  */
1128 void
1129 MidiRegionView::resolve_note(uint8_t note, double end_time)
1130 {
1131         if (midi_view()->note_mode() != Sustained) {
1132                 return;
1133         }
1134
1135         if (_active_notes && _active_notes[note]) {
1136                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1137                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1138                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1139                 _active_notes[note] = 0;
1140         }
1141 }
1142
1143
1144 /** Extend active notes to rightmost edge of region (if length is changed)
1145  */
1146 void
1147 MidiRegionView::extend_active_notes()
1148 {
1149         if (!_active_notes) {
1150                 return;
1151         }
1152
1153         for (unsigned i=0; i < 128; ++i) {
1154                 if (_active_notes[i]) {
1155                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1156                 }
1157         }
1158 }
1159
1160 void
1161 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1162 {
1163         if (no_sound_notes || !trackview.editor().sound_notes()) {
1164                 return;
1165         }
1166
1167         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1168         assert(route_ui);
1169
1170         route_ui->midi_track()->write_immediate_event(
1171                         note->on_event().size(), note->on_event().buffer());
1172
1173         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1174         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1175                         * (1000 / (double)route_ui->session()->nominal_frame_rate());
1176         Glib::signal_timeout().connect(sigc::bind(sigc::mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1177                         note_length_ms, G_PRIORITY_DEFAULT);
1178 }
1179
1180 bool
1181 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1182 {
1183         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1184         assert(route_ui);
1185
1186         route_ui->midi_track()->write_immediate_event(
1187                         note->off_event().size(), note->off_event().buffer());
1188
1189         return false;
1190 }
1191
1192 bool
1193 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1194 {
1195         const nframes64_t note_start_frames = beats_to_frames(note->time());
1196
1197         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1198                 (note_start_frames < _region->start());
1199
1200         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1201                 (note->note() <= midi_stream_view()->highest_note());
1202
1203         return !outside;
1204 }
1205
1206 void
1207 MidiRegionView::update_note (CanvasNote* ev)
1208 {
1209         boost::shared_ptr<NoteType> note = ev->note();
1210
1211         const nframes64_t note_start_frames = beats_to_frames(note->time());
1212         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1213
1214         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1215         const double y1 = midi_stream_view()->note_to_y(note->note());
1216         const double note_endpixel =
1217                 trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1218
1219         ev->property_x1() = x;
1220         ev->property_y1() = y1;
1221         if (note->length() > 0) {
1222                 ev->property_x2() = note_endpixel;
1223         } else {
1224                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1225         }
1226         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1227
1228         if (note->length() == 0) {
1229                 if (_active_notes) {
1230                         assert(note->note() < 128);
1231                         // If this note is already active there's a stuck note,
1232                         // finish the old note rectangle
1233                         if (_active_notes[note->note()]) {
1234                                 CanvasNote* const old_rect = _active_notes[note->note()];
1235                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1236                                 old_rect->property_x2() = x;
1237                                 old_rect->property_outline_what() = (guint32) 0xF;
1238                         }
1239                         _active_notes[note->note()] = ev;
1240                 }
1241                 /* outline all but right edge */
1242                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1243         } else {
1244                 /* outline all edges */
1245                 ev->property_outline_what() = (guint32) 0xF;
1246         }
1247 }
1248
1249 void
1250 MidiRegionView::update_hit (CanvasHit* ev)
1251 {
1252         boost::shared_ptr<NoteType> note = ev->note();
1253
1254         const nframes64_t note_start_frames = beats_to_frames(note->time());
1255         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1256         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1257         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1258
1259         ev->move_to (x, y);
1260 }
1261
1262 /** Add a MIDI note to the view (with length).
1263  *
1264  * If in sustained mode, notes with length 0 will be considered active
1265  * notes, and resolve_note should be called when the corresponding note off
1266  * event arrives, to properly display the note.
1267  */
1268 void
1269 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1270 {
1271         CanvasNoteEvent* event = 0;
1272
1273         assert(note->time() >= 0);
1274         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1275
1276         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1277
1278         if (midi_view()->note_mode() == Sustained) {
1279
1280                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1281
1282                 update_note (ev_rect);
1283
1284                 event = ev_rect;
1285
1286                 MidiGhostRegion* gr;
1287
1288                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1289                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1290                                 gr->add_note(ev_rect);
1291                         }
1292                 }
1293
1294         } else if (midi_view()->note_mode() == Percussive) {
1295
1296                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1297
1298                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1299
1300                 update_hit (ev_diamond);
1301
1302                 event = ev_diamond;
1303
1304         } else {
1305                 event = 0;
1306         }
1307
1308         if (event) {
1309                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1310                         note_selected(event, true);
1311                 }
1312
1313                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1314                         event->show_velocity();
1315                 }
1316                 event->on_channel_selection_change(_last_channel_selection);
1317                 _events.push_back(event);
1318
1319                 if (visible) {
1320                         event->show();
1321                 } else {
1322                         event->hide ();
1323                 }
1324         }
1325 }
1326
1327 void
1328 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1329                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1330 {
1331         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1332
1333         start_delta_command (_("step add"));
1334         delta_add_note (new_note, true, false);
1335         apply_delta();
1336
1337         /* potentially extend region to hold new note */
1338
1339         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1340         nframes64_t region_end = _region->position() + _region->length() - 1;
1341
1342         if (end_frame > region_end) {
1343                 _region->set_length (end_frame, this);
1344         } else {
1345                 redisplay_model ();
1346         }
1347 }
1348
1349 void
1350 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1351 {
1352         assert(program.time >= 0);
1353
1354         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1355         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1356
1357         double height = midi_stream_view()->contents_height();
1358
1359         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1360                         new CanvasProgramChange(*this, *group,
1361                                         displaytext,
1362                                         height,
1363                                         x, 1.0,
1364                                         _model_name,
1365                                         _custom_device_mode,
1366                                         program.time, program.channel, program.value));
1367
1368         // Show unless program change is beyond the region bounds
1369         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1370                 pgm_change->hide();
1371         } else {
1372                 pgm_change->show();
1373         }
1374
1375         _pgm_changes.push_back(pgm_change);
1376 }
1377
1378 void
1379 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1380 {
1381         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1382         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1383         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1384         float msb = -1.0;
1385         if (msb_control != 0) {
1386                 msb = int(msb_control->get_float(true, time));
1387                 cerr << "got msb " << msb;
1388         }
1389
1390         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1391         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1392         float lsb = -1.0;
1393         if (lsb_control != 0) {
1394                 lsb = lsb_control->get_float(true, time);
1395                 cerr << " got lsb " << lsb;
1396         }
1397
1398         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1399         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1400         float program_number = -1.0;
1401         if (program_control != 0) {
1402                 program_number = program_control->get_float(true, time);
1403                 cerr << " got program " << program_number << endl;
1404         }
1405
1406         key.msb = (int) floor(msb + 0.5);
1407         key.lsb = (int) floor(lsb + 0.5);
1408         key.program_number = (int) floor(program_number + 0.5);
1409         assert(key.is_sane());
1410 }
1411
1412
1413 void
1414 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1415 {
1416         // TODO: Get the real event here and alter them at the original times
1417         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1418         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1419         if (msb_control != 0) {
1420                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1421         }
1422
1423         // TODO: Get the real event here and alter them at the original times
1424         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1425         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1426         if (lsb_control != 0) {
1427                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1428         }
1429
1430         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1431         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1432
1433         assert(program_control != 0);
1434         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1435
1436         redisplay_model();
1437 }
1438
1439 void
1440 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1441 {
1442         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1443         alter_program_change(program_change_event, new_patch);
1444 }
1445
1446 void
1447 MidiRegionView::previous_program(CanvasProgramChange& program)
1448 {
1449         MIDI::Name::PatchPrimaryKey key;
1450         get_patch_key_at(program.event_time(), program.channel(), key);
1451
1452         boost::shared_ptr<MIDI::Name::Patch> patch =
1453                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1454                                 _model_name,
1455                                 _custom_device_mode,
1456                                 program.channel(),
1457                                 key);
1458
1459         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1460         if (patch) {
1461                 alter_program_change(program_change_event, patch->patch_primary_key());
1462         }
1463 }
1464
1465 void
1466 MidiRegionView::next_program(CanvasProgramChange& program)
1467 {
1468         MIDI::Name::PatchPrimaryKey key;
1469         get_patch_key_at(program.event_time(), program.channel(), key);
1470
1471         boost::shared_ptr<MIDI::Name::Patch> patch =
1472                 MIDI::Name::MidiPatchManager::instance().next_patch(
1473                                 _model_name,
1474                                 _custom_device_mode,
1475                                 program.channel(),
1476                                 key);
1477
1478         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1479         if (patch) {
1480                 alter_program_change(program_change_event, patch->patch_primary_key());
1481         }
1482 }
1483
1484 void
1485 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
1486 {
1487         if (_selection.empty()) {
1488                 return;
1489         }
1490
1491         if (_selection.erase (cne) > 0) {
1492                 cerr << "Erased a CNE from selection\n";
1493         }
1494 }
1495
1496 void
1497 MidiRegionView::delete_selection()
1498 {
1499         if (_selection.empty()) {
1500                 return;
1501         }
1502
1503         start_delta_command (_("delete selection"));
1504
1505         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1506                 if ((*i)->selected()) {
1507                         _delta_command->remove((*i)->note());
1508                 }
1509         }
1510
1511         _selection.clear();
1512
1513         apply_delta ();
1514 }
1515
1516 void
1517 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1518 {
1519         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1520                 if ((*i)->selected() && (*i) != ev) {
1521                         (*i)->selected(false);
1522                         (*i)->hide_velocity();
1523                 }
1524         }
1525
1526         _selection.clear();
1527 }
1528
1529 void
1530 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1531 {
1532         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1533                 if ((*i) != ev) {
1534
1535                         Selection::iterator tmp = i;
1536                         ++tmp;
1537
1538                         (*i)->selected (false);
1539                         _selection.erase (i);
1540
1541                         i = tmp;
1542
1543                 } else {
1544                         ++i;
1545                 }
1546         }
1547
1548         /* don't bother with removing this regionview from the editor selection,
1549            since we're about to add another note, and thus put/keep this
1550            regionview in the editor selection.
1551         */
1552
1553         if (!ev->selected()) {
1554                 add_to_selection (ev);
1555         }
1556 }
1557
1558 void
1559 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
1560 {
1561         uint8_t low_note = 127;
1562         uint8_t high_note = 0;
1563         MidiModel::Notes& notes (_model->notes());
1564         _optimization_iterator = _events.begin();
1565
1566         if (extend && _selection.empty()) {
1567                 extend = false;
1568         }
1569
1570         if (extend) {
1571
1572                 /* scan existing selection to get note range */
1573
1574                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1575                         if ((*i)->note()->note() < low_note) {
1576                                 low_note = (*i)->note()->note();
1577                         }
1578                         if ((*i)->note()->note() > high_note) {
1579                                 high_note = (*i)->note()->note();
1580                         }
1581                 }
1582
1583                 low_note = min (low_note, notenum);
1584                 high_note = max (high_note, notenum);
1585         }
1586
1587         no_sound_notes = true;
1588
1589         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1590
1591                 boost::shared_ptr<NoteType> note (*n);
1592                 CanvasNoteEvent* cne;
1593                 bool select = false;
1594
1595                 if (((0x0001 << note->channel()) & channel_mask) != 0) {
1596                         if (extend) {
1597                                 if ((note->note() >= low_note && note->note() <= high_note)) {
1598                                         select = true;
1599                                 }
1600                         } else if (note->note() == notenum) {
1601                                 select = true;
1602                         }
1603                 }
1604
1605                 if (select) {
1606                         if ((cne = find_canvas_note (note)) != 0) {
1607                                 // extend is false because we've taken care of it,
1608                                 // since it extends by time range, not pitch.
1609                                 note_selected (cne, add, false);
1610                         }
1611                 }
1612
1613                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
1614
1615         }
1616
1617         no_sound_notes = false;
1618 }
1619
1620 void
1621 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
1622 {
1623         MidiModel::Notes& notes (_model->notes());
1624         _optimization_iterator = _events.begin();
1625
1626         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1627
1628                 boost::shared_ptr<NoteType> note (*n);
1629                 CanvasNoteEvent* cne;
1630
1631                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
1632                         if ((cne = find_canvas_note (note)) != 0) {
1633                                 if (cne->selected()) {
1634                                         note_deselected (cne);
1635                                 } else {
1636                                         note_selected (cne, true, false);
1637                                 }
1638                         }
1639                 }
1640         }
1641 }
1642
1643 void
1644 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1645 {
1646         if (!add) {
1647                 clear_selection_except(ev);
1648         }
1649
1650         if (!extend) {
1651
1652                 if (!ev->selected()) {
1653                         add_to_selection (ev);
1654                 }
1655
1656         } else {
1657                 /* find end of latest note selected, select all between that and the start of "ev" */
1658
1659                 Evoral::MusicalTime earliest = DBL_MAX;
1660                 Evoral::MusicalTime latest = 0;
1661
1662                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1663                         if ((*i)->note()->end_time() > latest) {
1664                                 latest = (*i)->note()->end_time();
1665                         }
1666                         if ((*i)->note()->time() < earliest) {
1667                                 earliest = (*i)->note()->time();
1668                         }
1669                 }
1670
1671                 if (ev->note()->end_time() > latest) {
1672                         latest = ev->note()->end_time();
1673                 }
1674
1675                 if (ev->note()->time() < earliest) {
1676                         earliest = ev->note()->time();
1677                 }
1678
1679                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1680
1681                         /* find notes entirely within OR spanning the earliest..latest range */
1682
1683                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1684                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1685                                 add_to_selection (*i);
1686                         }
1687
1688 #if 0
1689                         /* if events were guaranteed to be time sorted, we could do this.
1690                            but as of sept 10th 2009, they no longer are.
1691                         */
1692
1693                         if ((*i)->note()->time() > latest) {
1694                                 break;
1695                         }
1696 #endif
1697                 }
1698         }
1699 }
1700
1701 void
1702 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1703 {
1704         remove_from_selection (ev);
1705 }
1706
1707 void
1708 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1709 {
1710         if (x1 > x2) {
1711                 swap (x1, x2);
1712         }
1713
1714         if (y1 > y2) {
1715                 swap (y1, y2);
1716         }
1717
1718         // TODO: Make this faster by storing the last updated selection rect, and only
1719         // adjusting things that are in the area that appears/disappeared.
1720         // We probably need a tree to be able to find events in O(log(n)) time.
1721
1722         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1723
1724                 /* check if any corner of the note is inside the rect
1725
1726                    Notes:
1727                      1) this is computing "touched by", not "contained by" the rect.
1728                      2) this does not require that events be sorted in time.
1729                  */
1730
1731                 const double ix1 = (*i)->x1();
1732                 const double ix2 = (*i)->x2();
1733                 const double iy1 = (*i)->y1();
1734                 const double iy2 = (*i)->y2();
1735
1736                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1737                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1738                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1739                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1740
1741                         // Inside rectangle
1742                         if (!(*i)->selected()) {
1743                                 add_to_selection (*i);
1744                         }
1745                 } else if ((*i)->selected()) {
1746                         // Not inside rectangle
1747                         remove_from_selection (*i);
1748                 }
1749         }
1750 }
1751
1752 void
1753 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1754 {
1755         Selection::iterator i = _selection.find (ev);
1756
1757         if (i != _selection.end()) {
1758                 _selection.erase (i);
1759         }
1760
1761         ev->selected (false);
1762         ev->hide_velocity ();
1763
1764         if (_selection.empty()) {
1765                 PublicEditor& editor (trackview.editor());
1766                 editor.get_selection().remove (this);
1767         }
1768 }
1769
1770 void
1771 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1772 {
1773         bool add_mrv_selection = false;
1774
1775         if (_selection.empty()) {
1776                 add_mrv_selection = true;
1777         }
1778
1779         if (_selection.insert (ev).second) {
1780                 ev->selected (true);
1781                 play_midi_note ((ev)->note());
1782         }
1783
1784         if (add_mrv_selection) {
1785                 PublicEditor& editor (trackview.editor());
1786                 editor.get_selection().add (this);
1787         }
1788 }
1789
1790 void
1791 MidiRegionView::move_selection(double dx, double dy)
1792 {
1793         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1794                 (*i)->move_event(dx, dy);
1795         }
1796 }
1797
1798 void
1799 MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
1800 {
1801         assert (!_selection.empty());
1802
1803         uint8_t lowest_note_in_selection  = 127;
1804         uint8_t highest_note_in_selection = 0;
1805         uint8_t highest_note_difference = 0;
1806
1807         // find highest and lowest notes first
1808
1809         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1810                 uint8_t pitch = (*i)->note()->note();
1811                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1812                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1813         }
1814
1815         /*
1816         cerr << "dnote: " << (int) dnote << endl;
1817         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1818              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1819         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1820              << int(highest_note_in_selection) << endl;
1821         cerr << "selection size: " << _selection.size() << endl;
1822         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1823         */
1824
1825         // Make sure the note pitch does not exceed the MIDI standard range
1826         if (highest_note_in_selection + dnote > 127) {
1827                 highest_note_difference = highest_note_in_selection - 127;
1828         }
1829
1830         start_diff_command(_("move notes"));
1831
1832         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1833
1834                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1835
1836                 if (dt >= 0) {
1837                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1838                 } else {
1839                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1840                 }
1841
1842                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1843
1844                 if (new_time < 0) {
1845                         continue;
1846                 }
1847
1848                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1849
1850                 uint8_t original_pitch = (*i)->note()->note();
1851                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1852
1853                 // keep notes in standard midi range
1854                 clamp_to_0_127(new_pitch);
1855
1856                 // keep original pitch if note is dragged outside valid midi range
1857                 if ((original_pitch != 0 && new_pitch == 0)
1858                                 || (original_pitch != 127 && new_pitch == 127)) {
1859                         new_pitch = original_pitch;
1860                 }
1861
1862                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1863                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1864
1865                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1866         }
1867
1868         apply_diff();
1869
1870         // care about notes being moved beyond the upper/lower bounds on the canvas
1871         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1872             highest_note_in_selection > midi_stream_view()->highest_note()) {
1873                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1874         }
1875 }
1876
1877 nframes64_t
1878 MidiRegionView::snap_pixel_to_frame(double x)
1879 {
1880         PublicEditor& editor = trackview.editor();
1881         // x is region relative, convert it to global absolute frames
1882         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1883         editor.snap_to(frame);
1884         return frame - _region->position(); // convert back to region relative
1885 }
1886
1887 nframes64_t
1888 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1889 {
1890         PublicEditor& editor = trackview.editor();
1891         // x is region relative, convert it to global absolute frames
1892         nframes64_t frame = x + _region->position();
1893         editor.snap_to(frame);
1894         return frame - _region->position(); // convert back to region relative
1895 }
1896
1897 double
1898 MidiRegionView::snap_to_pixel(double x)
1899 {
1900         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1901 }
1902
1903 double
1904 MidiRegionView::get_position_pixels()
1905 {
1906         nframes64_t region_frame = get_position();
1907         return trackview.editor().frame_to_pixel(region_frame);
1908 }
1909
1910 double
1911 MidiRegionView::get_end_position_pixels()
1912 {
1913         nframes64_t frame = get_position() + get_duration ();
1914         return trackview.editor().frame_to_pixel(frame);
1915 }
1916
1917 nframes64_t
1918 MidiRegionView::beats_to_frames(double beats) const
1919 {
1920         return _time_converter.to(beats);
1921 }
1922
1923 double
1924 MidiRegionView::frames_to_beats(nframes64_t frames) const
1925 {
1926         return _time_converter.from(frames);
1927 }
1928
1929 void
1930 MidiRegionView::begin_resizing (bool /*at_front*/)
1931 {
1932         _resize_data.clear();
1933
1934         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1935                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1936
1937                 // only insert CanvasNotes into the map
1938                 if (note) {
1939                         NoteResizeData *resize_data = new NoteResizeData();
1940                         resize_data->canvas_note = note;
1941
1942                         // create a new SimpleRect from the note which will be the resize preview
1943                         SimpleRect *resize_rect = new SimpleRect(
1944                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1945
1946                         // calculate the colors: get the color settings
1947                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1948                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1949                                         128);
1950
1951                         // make the resize preview notes more transparent and bright
1952                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1953
1954                         // calculate color based on note velocity
1955                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1956                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1957                                         fill_color,
1958                                         0.85);
1959
1960                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1961                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1962
1963                         resize_data->resize_rect = resize_rect;
1964                         _resize_data.push_back(resize_data);
1965                 }
1966         }
1967 }
1968
1969 void
1970 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1971 {
1972         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1973                 SimpleRect* resize_rect = (*i)->resize_rect;
1974                 CanvasNote* canvas_note = (*i)->canvas_note;
1975                 double current_x;
1976
1977                 if (at_front) {
1978                         if (relative) {
1979                                 current_x = canvas_note->x1() + delta_x;
1980                         } else {
1981                                 // x is in track relative, transform it to region relative
1982                                 current_x = delta_x - get_position_pixels();
1983                         }
1984                 } else {
1985                         if (relative) {
1986                                 current_x = canvas_note->x2() + delta_x;
1987                         } else {
1988                                 // x is in track relative, transform it to region relative
1989                                 current_x = delta_x - get_end_position_pixels ();
1990                         }
1991                 }
1992
1993                 if (at_front) {
1994                         resize_rect->property_x1() = snap_to_pixel(current_x);
1995                         resize_rect->property_x2() = canvas_note->x2();
1996                 } else {
1997                         resize_rect->property_x2() = snap_to_pixel(current_x);
1998                         resize_rect->property_x1() = canvas_note->x1();
1999                 }
2000         }
2001 }
2002
2003 void
2004 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
2005 {
2006         start_diff_command(_("resize notes"));
2007
2008         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2009                 CanvasNote*  canvas_note = (*i)->canvas_note;
2010                 SimpleRect*  resize_rect = (*i)->resize_rect;
2011                 const double region_start = get_position_pixels();
2012                 double current_x;
2013
2014                 if (at_front) {
2015                         if (relative) {
2016                                 current_x = canvas_note->x1() + delta_x;
2017                         } else {
2018                                 // x is in track relative, transform it to region relative
2019                                 current_x = region_start + delta_x;
2020                         }
2021                 } else {
2022                         if (relative) {
2023                                 current_x = canvas_note->x2() + delta_x;
2024                         } else {
2025                                 // x is in track relative, transform it to region relative
2026                                 current_x = region_start + delta_x;
2027                         }
2028                 }
2029
2030                 current_x = snap_pixel_to_frame (current_x);
2031                 current_x = frames_to_beats (current_x);
2032
2033                 if (at_front && current_x < canvas_note->note()->end_time()) {
2034                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
2035
2036                         double len = canvas_note->note()->time() - current_x;
2037                         len += canvas_note->note()->length();
2038
2039                         if (len > 0) {
2040                                 /* XXX convert to beats */
2041                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
2042                         }
2043                 }
2044
2045                 if (!at_front) {
2046                         double len = current_x - canvas_note->note()->time();
2047
2048                         if (len > 0) {
2049                                 /* XXX convert to beats */
2050                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
2051                         }
2052                 }
2053
2054                 delete resize_rect;
2055                 delete (*i);
2056         }
2057
2058         _resize_data.clear();
2059         apply_diff();
2060 }
2061
2062 void
2063 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
2064 {
2065         uint8_t new_velocity;
2066
2067         if (relative) {
2068                 new_velocity = event->note()->velocity() + velocity;
2069                 clamp_to_0_127(new_velocity);
2070         } else {
2071                 new_velocity = velocity;
2072         }
2073
2074         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
2075 }
2076
2077 void
2078 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
2079 {
2080         uint8_t new_note;
2081
2082         if (relative) {
2083                 new_note = event->note()->note() + note;
2084         } else {
2085                 new_note = note;
2086         }
2087
2088         clamp_to_0_127 (new_note);
2089         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
2090 }
2091
2092 void
2093 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2094 {
2095         bool change_start = false;
2096         bool change_length = false;
2097         Evoral::MusicalTime new_start;
2098         Evoral::MusicalTime new_length;
2099
2100         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2101
2102            front_delta: if positive - move the start of the note later in time (shortening it)
2103                         if negative - move the start of the note earlier in time (lengthening it)
2104
2105            end_delta:   if positive - move the end of the note later in time (lengthening it)
2106                         if negative - move the end of the note earlier in time (shortening it)
2107          */
2108
2109         if (front_delta) {
2110                 if (front_delta < 0) {
2111
2112                         if (event->note()->time() < -front_delta) {
2113                                 new_start = 0;
2114                         } else {
2115                                 new_start = event->note()->time() + front_delta; // moves earlier
2116                         }
2117
2118                         /* start moved toward zero, so move the end point out to where it used to be.
2119                            Note that front_delta is negative, so this increases the length.
2120                         */
2121
2122                         new_length = event->note()->length() - front_delta;
2123                         change_start = true;
2124                         change_length = true;
2125
2126                 } else {
2127
2128                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2129
2130                         if (new_pos < event->note()->end_time()) {
2131                                 new_start = event->note()->time() + front_delta;
2132                                 /* start moved toward the end, so move the end point back to where it used to be */
2133                                 new_length = event->note()->length() - front_delta;
2134                                 change_start = true;
2135                                 change_length = true;
2136                         }
2137                 }
2138
2139         }
2140
2141         if (end_delta) {
2142                 bool can_change = true;
2143                 if (end_delta < 0) {
2144                         if (event->note()->length() < -end_delta) {
2145                                 can_change = false;
2146                         }
2147                 }
2148
2149                 if (can_change) {
2150                         new_length = event->note()->length() + end_delta;
2151                         change_length = true;
2152                 }
2153         }
2154
2155         if (change_start) {
2156                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2157         }
2158
2159         if (change_length) {
2160                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2161         }
2162 }
2163
2164 void
2165 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2166 {
2167         Evoral::MusicalTime new_time;
2168
2169         if (relative) {
2170                 if (delta < 0.0) {
2171                         if (event->note()->time() < -delta) {
2172                                 new_time = 0;
2173                         } else {
2174                                 new_time = event->note()->time() + delta;
2175                         }
2176                 } else {
2177                         new_time = event->note()->time() + delta;
2178                 }
2179         } else {
2180                 new_time = delta;
2181         }
2182
2183         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2184 }
2185
2186 void
2187 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2188 {
2189         int8_t delta;
2190
2191         if (_selection.empty()) {
2192                 return;
2193         }
2194
2195         if (fine) {
2196                 delta = 1;
2197         } else {
2198                 delta = 10;
2199         }
2200
2201         if (!up) {
2202                 delta = -delta;
2203         }
2204
2205         if (!allow_smush) {
2206                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2207                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2208                                 return;
2209                         }
2210                 }
2211         }
2212
2213         start_diff_command(_("change velocities"));
2214
2215         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2216                 Selection::iterator next = i;
2217                 ++next;
2218                 change_note_velocity (*i, delta, true);
2219                 i = next;
2220         }
2221
2222         apply_diff();
2223 }
2224
2225
2226 void
2227 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2228 {
2229         if (_selection.empty()) {
2230                 return;
2231         }
2232
2233         int8_t delta;
2234
2235         if (fine) {
2236                 delta = 1;
2237         } else {
2238                 delta = 12;
2239         }
2240
2241         if (!up) {
2242                 delta = -delta;
2243         }
2244
2245         if (!allow_smush) {
2246                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2247                         if (!up) {
2248                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2249                                         return;
2250                                 }
2251                         } else {
2252                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2253                                         return;
2254                                 }
2255                         }
2256                 }
2257         }
2258
2259         start_diff_command (_("transpose"));
2260
2261         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2262                 Selection::iterator next = i;
2263                 ++next;
2264                 change_note_note (*i, delta, true);
2265                 i = next;
2266         }
2267
2268         apply_diff ();
2269 }
2270
2271 void
2272 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2273 {
2274         Evoral::MusicalTime delta;
2275
2276         if (fine) {
2277                 delta = 1.0/128.0;
2278         } else {
2279                 /* grab the current grid distance */
2280                 bool success;
2281                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2282                 if (!success) {
2283                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2284                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2285                         return;
2286                 }
2287         }
2288
2289         if (shorter) {
2290                 delta = -delta;
2291         }
2292
2293         start_diff_command (_("change note lengths"));
2294
2295         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2296                 Selection::iterator next = i;
2297                 ++next;
2298
2299                 /* note the negation of the delta for start */
2300
2301                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2302                 i = next;
2303         }
2304
2305         apply_diff ();
2306
2307 }
2308
2309 void
2310 MidiRegionView::nudge_notes (bool forward)
2311 {
2312         if (_selection.empty()) {
2313                 return;
2314         }
2315
2316         /* pick a note as the point along the timeline to get the nudge distance.
2317            its not necessarily the earliest note, so we may want to pull the notes out
2318            into a vector and sort before using the first one.
2319         */
2320
2321         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2322         nframes64_t unused;
2323         nframes64_t distance;
2324
2325         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2326
2327                 /* grid is off - use nudge distance */
2328
2329                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2330
2331         } else {
2332
2333                 /* use grid */
2334
2335                 nframes64_t next_pos = ref_point;
2336
2337                 if (forward) {
2338                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2339                         next_pos += 1;
2340                 } else {
2341                         if (next_pos == 0) {
2342                                 return;
2343                         }
2344                         next_pos -= 1;
2345                 }
2346
2347                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2348                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2349                 distance = ref_point - next_pos;
2350                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2351         }
2352
2353         if (distance == 0) {
2354                 return;
2355         }
2356
2357         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2358
2359         if (!forward) {
2360                 delta = -delta;
2361         }
2362
2363         start_diff_command (_("nudge"));
2364
2365         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2366                 Selection::iterator next = i;
2367                 ++next;
2368                 change_note_time (*i, delta, true);
2369                 i = next;
2370         }
2371
2372         apply_diff ();
2373 }
2374
2375 void
2376 MidiRegionView::change_channel(uint8_t channel)
2377 {
2378         start_diff_command(_("change channel"));
2379         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2380                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2381         }
2382         apply_diff();
2383 }
2384
2385
2386 void
2387 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2388 {
2389         if (_mouse_state == SelectTouchDragging) {
2390                 note_selected(ev, true);
2391         }
2392
2393         char buf[4];
2394         snprintf (buf, sizeof (buf), "%d", (int) ev->note()->note());
2395         // This causes an infinite loop on note add sometimes
2396         //PublicEditor& editor (trackview.editor());
2397         //editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
2398         //editor.show_verbose_canvas_cursor_with (buf);
2399 }
2400
2401 void
2402 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2403 {
2404         PublicEditor& editor (trackview.editor());
2405         editor.hide_verbose_canvas_cursor ();
2406 }
2407
2408
2409 void
2410 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2411 {
2412         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2413         if (msrc)
2414                 display_model(msrc->model());
2415 }
2416
2417 void
2418 MidiRegionView::set_frame_color()
2419 {
2420         if (frame) {
2421                 if (_selected && should_show_selection) {
2422                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2423                 } else {
2424                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2425                 }
2426         }
2427 }
2428
2429 void
2430 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2431 {
2432         switch (mode) {
2433         case AllChannels:
2434         case FilterChannels:
2435                 _force_channel = -1;
2436                 break;
2437         case ForceChannel:
2438                 _force_channel = mask;
2439                 mask = 0xFFFF; // Show all notes as active (below)
2440         };
2441
2442         // Update notes for selection
2443         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2444                 (*i)->on_channel_selection_change(mask);
2445         }
2446
2447         _last_channel_selection = mask;
2448 }
2449
2450 void
2451 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2452 {
2453         _model_name         = model;
2454         _custom_device_mode = custom_device_mode;
2455         redisplay_model();
2456 }
2457
2458 void
2459 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2460 {
2461         if (_selection.empty()) {
2462                 return;
2463         }
2464
2465         PublicEditor& editor (trackview.editor());
2466
2467         switch (op) {
2468         case Cut:
2469         case Copy:
2470                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2471                 break;
2472         default:
2473                 break;
2474         }
2475
2476         if (op != Copy) {
2477
2478                 start_delta_command();
2479
2480                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2481                         switch (op) {
2482                         case Copy:
2483                                 break;
2484                         case Cut:
2485                         case Clear:
2486                                 delta_remove_note (*i);
2487                                 break;
2488                         }
2489                 }
2490
2491                 apply_delta();
2492         }
2493 }
2494
2495 MidiCutBuffer*
2496 MidiRegionView::selection_as_cut_buffer () const
2497 {
2498         Notes notes;
2499
2500         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2501                 NoteType* n = (*i)->note().get();
2502                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
2503         }
2504
2505         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2506         cb->set (notes);
2507
2508         return cb;
2509 }
2510
2511 void
2512 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2513 {
2514         if (mcb.empty()) {
2515                 return;
2516         }
2517
2518         start_delta_command (_("paste"));
2519
2520         Evoral::MusicalTime beat_delta;
2521         Evoral::MusicalTime paste_pos_beats;
2522         Evoral::MusicalTime duration;
2523         Evoral::MusicalTime end_point;
2524
2525         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2526         paste_pos_beats = frames_to_beats (pos - _region->position());
2527         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2528         paste_pos_beats = 0;
2529
2530         _selection.clear ();
2531
2532         for (int n = 0; n < (int) times; ++n) {
2533
2534                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2535
2536                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2537                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2538
2539                         /* make all newly added notes selected */
2540
2541                         delta_add_note (copied_note, true);
2542                         end_point = copied_note->end_time();
2543                 }
2544
2545                 paste_pos_beats += duration;
2546         }
2547
2548         /* if we pasted past the current end of the region, extend the region */
2549
2550         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2551         nframes64_t region_end = _region->position() + _region->length() - 1;
2552
2553         if (end_frame > region_end) {
2554
2555                 trackview.session()->begin_reversible_command (_("paste"));
2556
2557                 _region->clear_history ();
2558                 _region->set_length (end_frame, this);
2559                 trackview.session()->add_command (new StatefulDiffCommand (_region));
2560         }
2561
2562         apply_delta ();
2563 }
2564
2565 struct EventNoteTimeEarlyFirstComparator {
2566     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2567             return a->note()->time() < b->note()->time();
2568     }
2569 };
2570
2571 void
2572 MidiRegionView::time_sort_events ()
2573 {
2574         if (!_sort_needed) {
2575                 return;
2576         }
2577
2578         EventNoteTimeEarlyFirstComparator cmp;
2579         _events.sort (cmp);
2580
2581         _sort_needed = false;
2582 }
2583
2584 void
2585 MidiRegionView::goto_next_note ()
2586 {
2587         // nframes64_t pos = -1;
2588         bool use_next = false;
2589
2590         if (_events.back()->selected()) {
2591                 return;
2592         }
2593
2594         time_sort_events ();
2595
2596         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2597                 if ((*i)->selected()) {
2598                         use_next = true;
2599                         continue;
2600                 } else if (use_next) {
2601                         unique_select (*i);
2602                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2603                         return;
2604                 }
2605         }
2606
2607         /* use the first one */
2608
2609         unique_select (_events.front());
2610
2611 }
2612
2613 void
2614 MidiRegionView::goto_previous_note ()
2615 {
2616         // nframes64_t pos = -1;
2617         bool use_next = false;
2618
2619         if (_events.front()->selected()) {
2620                 return;
2621         }
2622
2623         time_sort_events ();
2624
2625         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2626                 if ((*i)->selected()) {
2627                         use_next = true;
2628                         continue;
2629                 } else if (use_next) {
2630                         unique_select (*i);
2631                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2632                         return;
2633                 }
2634         }
2635
2636         /* use the last one */
2637
2638         unique_select (*(_events.rbegin()));
2639 }
2640
2641 void
2642 MidiRegionView::selection_as_notelist (Notes& selected)
2643 {
2644         time_sort_events ();
2645
2646         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2647                 if ((*i)->selected()) {
2648                         selected.insert ((*i)->note());
2649                 }
2650         }
2651 }