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 #include "evoral/midi_util.h"
  45
  46 #include "automation_region_view.h"
  47 #include "automation_time_axis.h"
  48 #include "canvas-hit.h"
  49 #include "canvas-note.h"
  50 #include "canvas-program-change.h"
  51 #include "ghostregion.h"
  52 #include "gui_thread.h"
  53 #include "keyboard.h"
  54 #include "midi_cut_buffer.h"
  55 #include "midi_list_editor.h"
  56 #include "midi_region_view.h"
  57 #include "midi_streamview.h"
  58 #include "midi_time_axis.h"
  59 #include "midi_time_axis.h"
  60 #include "midi_util.h"
  61 #include "public_editor.h"
  62 #include "selection.h"
  63 #include "simpleline.h"
  64 #include "streamview.h"
  65 #include "utils.h"
  66
  67 #include "i18n.h"
  68
  69 using namespace ARDOUR;
  70 using namespace PBD;
  71 using namespace Editing;
  72 using namespace ArdourCanvas;
  73 using Gtkmm2ext::Keyboard;
  74
  75 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  76                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  77         : RegionView (parent, tv, r, spu, basic_color)
  78         , _force_channel(-1)
  79         , _last_channel_selection(0xFFFF)
  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         , _model_name(string())
 105         , _custom_device_mode(string())
 106         , _active_notes(0)
 107         , _note_group(new ArdourCanvas::Group(*parent))
 108         , _delta_command(0)
 109         , _diff_command(0)
 110         , _mouse_state(None)
 111         , _pressed_button(0)
 112         , _sort_needed (true)
 113         , _optimization_iterator (_events.end())
 114         , _list_editor (0)
 115         , no_sound_notes (false)
 116
 117 {
 118         _note_group->raise_to_top();
 119 }
 120
 121
 122 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 123         : sigc::trackable(other)
 124         , RegionView (other)
 125         , _force_channel(-1)
 126         , _last_channel_selection(0xFFFF)
 127         , _model_name(string())
 128         , _custom_device_mode(string())
 129         , _active_notes(0)
 130         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 131         , _delta_command(0)
 132         , _diff_command(0)
 133         , _mouse_state(None)
 134         , _pressed_button(0)
 135         , _sort_needed (true)
 136         , _optimization_iterator (_events.end())
 137         , _list_editor (0)
 138         , no_sound_notes (false)
 139 {
 140         Gdk::Color c;
 141         int r,g,b,a;
 142
 143         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 144         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 145
 146         init (c, false);
 147 }
 148
 149 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 150         : RegionView (other, boost::shared_ptr<Region> (region))
 151         , _force_channel(-1)
 152         , _last_channel_selection(0xFFFF)
 153         , _model_name(string())
 154         , _custom_device_mode(string())
 155         , _active_notes(0)
 156         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 157         , _delta_command(0)
 158         , _diff_command(0)
 159         , _mouse_state(None)
 160         , _pressed_button(0)
 161         , _sort_needed (true)
 162         , _optimization_iterator (_events.end())
 163         , _list_editor (0)
 164         , no_sound_notes (false)
 165 {
 166         Gdk::Color c;
 167         int r,g,b,a;
 168
 169         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 170         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 171
 172         init (c, true);
 173 }
 174
 175 void
 176 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 177 {
 178         CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 179                                                          ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 180                                                          gui_context());
 181
 182         if (wfd) {
 183                 midi_region()->midi_source(0)->load_model();
 184         }
 185
 186         _model = midi_region()->midi_source(0)->model();
 187         _enable_display = false;
 188
 189         RegionView::init (basic_color, false);
 190
 191         compute_colors (basic_color);
 192
 193         set_height (trackview.current_height());
 194
 195         region_muted ();
 196         region_sync_changed ();
 197         region_resized (ARDOUR::bounds_change);
 198         region_locked ();
 199
 200         reset_width_dependent_items (_pixel_width);
 201
 202         set_colors ();
 203
 204         _enable_display = true;
 205         if (_model) {
 206                 if (wfd) {
 207                         display_model (_model);
 208                 }
 209         }
 210
 211         group->raise_to_top();
 212         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 213
 214         midi_view()->signal_channel_mode_changed().connect(
 215                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 216
 217         midi_view()->signal_midi_patch_settings_changed().connect(
 218                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 219 }
 220
 221 bool
 222 MidiRegionView::canvas_event(GdkEvent* ev)
 223 {
 224         PublicEditor& editor (trackview.editor());
 225
 226         if (!editor.internal_editing()) {
 227                 return false;
 228         }
 229
 230         static double drag_start_x, drag_start_y;
 231         static double last_x, last_y;
 232         double event_x, event_y;
 233         nframes64_t event_frame = 0;
 234         bool fine;
 235
 236         static ArdourCanvas::SimpleRect* drag_rect = 0;
 237
 238         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 239            to its items, which means that ev->type == GDK_SCROLL will never be seen
 240         */
 241
 242         switch (ev->type) {
 243         case GDK_SCROLL:
 244                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 245
 246                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 247                         change_velocities (true, fine, false);
 248                         return true;
 249                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 250                         change_velocities (false, fine, false);
 251                         return true;
 252                 } else {
 253                         return false;
 254                 }
 255                 break;
 256
 257         case GDK_KEY_PRESS:
 258
 259                 /* since GTK bindings are generally activated on press, and since
 260                    detectable auto-repeat is the name of the game and only sends
 261                    repeated presses, carry out key actions at key press, not release.
 262                 */
 263
 264                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 265                         _mouse_state = SelectTouchDragging;
 266                         return true;
 267
 268                 } else if (ev->key.keyval == GDK_Escape) {
 269                         clear_selection();
 270                         _mouse_state = None;
 271
 272                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 273
 274                         bool start = (ev->key.keyval == GDK_comma);
 275                         bool end = (ev->key.keyval == GDK_period);
 276                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 277                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 278
 279                         change_note_lengths (fine, shorter, start, end);
 280
 281                         return true;
 282
 283                 } else if (ev->key.keyval == GDK_Delete) {
 284
 285                         delete_selection();
 286                         return true;
 287
 288                 } else if (ev->key.keyval == GDK_Tab) {
 289
 290                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 291                                 goto_previous_note ();
 292                         } else {
 293                                 goto_next_note ();
 294                         }
 295                         return true;
 296
 297                 } else if (ev->key.keyval == GDK_Up) {
 298
 299                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 300                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 301
 302                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 303                                 change_velocities (true, fine, allow_smush);
 304                         } else {
 305                                 transpose (true, fine, allow_smush);
 306                         }
 307                         return true;
 308
 309                 } else if (ev->key.keyval == GDK_Down) {
 310
 311                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 312                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 313
 314                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 315                                 change_velocities (false, fine, allow_smush);
 316                         } else {
 317                                 transpose (false, fine, allow_smush);
 318                         }
 319                         return true;
 320
 321                 } else if (ev->key.keyval == GDK_Left) {
 322
 323                         nudge_notes (false);
 324                         return true;
 325
 326                 } else if (ev->key.keyval == GDK_Right) {
 327
 328                         nudge_notes (true);
 329                         return true;
 330
 331                 } else if (ev->key.keyval == GDK_Control_L) {
 332                         return true;
 333
 334                 } else if (ev->key.keyval == GDK_r) {
 335                         /* if we're not step editing, this really doesn't matter */
 336                         midi_view()->step_edit_rest ();
 337                         return true;
 338                 }
 339
 340                 return false;
 341
 342         case GDK_KEY_RELEASE:
 343                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 344                         _mouse_state = None;
 345                         return true;
 346                 }
 347                 return false;
 348
 349         case GDK_BUTTON_PRESS:
 350                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 351                         _pressed_button = ev->button.button;
 352                         _mouse_state = Pressed;
 353                         return true;
 354                 }
 355                 _pressed_button = ev->button.button;
 356                 return true;
 357
 358         case GDK_2BUTTON_PRESS:
 359                 return true;
 360
 361         case GDK_ENTER_NOTIFY:
 362                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 363                 Keyboard::magic_widget_grab_focus();
 364                 group->grab_focus();
 365                 break;
 366
 367         case GDK_MOTION_NOTIFY:
 368                 event_x = ev->motion.x;
 369                 event_y = ev->motion.y;
 370                 group->w2i(event_x, event_y);
 371
 372                 // convert event_x to global frame
 373                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 374                 trackview.editor().snap_to(event_frame);
 375                 // convert event_frame back to local coordinates relative to position
 376                 event_frame -= _region->position();
 377
 378                 switch (_mouse_state) {
 379                 case Pressed: // Drag start
 380
 381                         // Select drag start
 382                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 383                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 384                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 385                                 last_x = event_x;
 386                                 last_y = event_y;
 387                                 drag_start_x = event_x;
 388                                 drag_start_y = event_y;
 389
 390                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 391                                 drag_rect->property_x1() = event_x;
 392                                 drag_rect->property_y1() = event_y;
 393                                 drag_rect->property_x2() = event_x;
 394                                 drag_rect->property_y2() = event_y;
 395                                 drag_rect->property_outline_what() = 0xFF;
 396                                 drag_rect->property_outline_color_rgba()
 397                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 398                                 drag_rect->property_fill_color_rgba()
 399                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 400
 401                                 _mouse_state = SelectRectDragging;
 402                                 return true;
 403
 404                         // Add note drag start
 405                         } else if (editor.current_mouse_mode() == MouseRange) {
 406                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 407                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 408                                 last_x = event_x;
 409                                 last_y = event_y;
 410                                 drag_start_x = event_x;
 411                                 drag_start_y = event_y;
 412
 413                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 414                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 415
 416                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 417                                                 midi_stream_view()->y_to_note(event_y));
 418                                 drag_rect->property_x2() = event_x;
 419                                 drag_rect->property_y2() = drag_rect->property_y1()
 420                                                          + floor(midi_stream_view()->note_height());
 421                                 drag_rect->property_outline_what() = 0xFF;
 422                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 423                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 424
 425                                 _mouse_state = AddDragging;
 426                                 return true;
 427                         }
 428
 429                         return false;
 430
 431                 case SelectRectDragging: // Select drag motion
 432                 case AddDragging: // Add note drag motion
 433                         if (ev->motion.is_hint) {
 434                                 int t_x;
 435                                 int t_y;
 436                                 GdkModifierType state;
 437                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 438                                 event_x = t_x;
 439                                 event_y = t_y;
 440                         }
 441
 442                         if (_mouse_state == AddDragging)
 443                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 444
 445                         if (drag_rect) {
 446                                 if (event_x > drag_start_x)
 447                                         drag_rect->property_x2() = event_x;
 448                                 else
 449                                         drag_rect->property_x1() = event_x;
 450                         }
 451
 452                         if (drag_rect && _mouse_state == SelectRectDragging) {
 453                                 if (event_y > drag_start_y)
 454                                         drag_rect->property_y2() = event_y;
 455                                 else
 456                                         drag_rect->property_y1() = event_y;
 457
 458                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 459                         }
 460
 461                         last_x = event_x;
 462                         last_y = event_y;
 463
 464                 case SelectTouchDragging:
 465                         return false;
 466
 467                 default:
 468                         break;
 469                 }
 470                 break;
 471
 472         case GDK_BUTTON_RELEASE:
 473                 event_x = ev->motion.x;
 474                 event_y = ev->motion.y;
 475                 group->w2i(event_x, event_y);
 476                 group->ungrab(ev->button.time);
 477                 event_frame = trackview.editor().pixel_to_frame(event_x);
 478
 479                 if (ev->button.button == 3) {
 480                         return false;
 481                 } else if (_pressed_button != 1) {
 482                         return false;
 483                 }
 484
 485                 switch (_mouse_state) {
 486                 case Pressed: // Clicked
 487                         switch (editor.current_mouse_mode()) {
 488                         case MouseObject:
 489                         case MouseTimeFX:
 490                                 clear_selection();
 491                                 break;
 492                         case MouseRange:
 493                         {
 494                                 bool success;
 495                                 Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 496                                 if (!success) {
 497                                         beats = 1;
 498                                 }
 499
 500                                 create_note_at (event_x, event_y, beats);
 501                                 break;
 502                         }
 503                         default:
 504                                 break;
 505                         }
 506                         _mouse_state = None;
 507                         break;
 508                 case SelectRectDragging: // Select drag done
 509                         _mouse_state = None;
 510                         delete drag_rect;
 511                         drag_rect = 0;
 512                         break;
 513                 case AddDragging: // Add drag done
 514                         _mouse_state = None;
 515                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 516                                 const double x      = drag_rect->property_x1();
 517                                 const double length = trackview.editor().pixel_to_frame(
 518                                                         drag_rect->property_x2() - drag_rect->property_x1());
 519
 520                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 521                         }
 522
 523                         delete drag_rect;
 524                         drag_rect = 0;
 525                 default: break;
 526                 }
 527
 528         default: break;
 529         }
 530
 531         return false;
 532 }
 533
 534 void
 535 MidiRegionView::show_list_editor ()
 536 {
 537         if (!_list_editor) {
 538                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 539         }
 540         _list_editor->present ();
 541 }
 542
 543 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 544  * \param x horizontal position in pixels
 545  * \param y vertical position in pixels
 546  * \param length duration of the note in beats */
 547 void
 548 MidiRegionView::create_note_at(double x, double y, double length)
 549 {
 550         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 551         MidiStreamView* const view = mtv->midi_view();
 552
 553         double note = midi_stream_view()->y_to_note(y);
 554
 555         assert(note >= 0.0);
 556         assert(note <= 127.0);
 557
 558         // Start of note in frames relative to region start
 559         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 560         assert(start_frames >= 0);
 561
 562         // Snap length
 563         length = frames_to_beats(
 564                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 565
 566         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 567                         frames_to_beats(start_frames + _region->start()), length,
 568                         (uint8_t)note, 0x40));
 569
 570         if (_model->contains (new_note)) {
 571                 return;
 572         }
 573
 574         view->update_note_range(new_note->note());
 575
 576         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 577         cmd->add(new_note);
 578         _model->apply_command(*trackview.session(), cmd);
 579
 580         play_midi_note (new_note);
 581 }
 582
 583 void
 584 MidiRegionView::clear_events()
 585 {
 586         clear_selection();
 587
 588         MidiGhostRegion* gr;
 589         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 590                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 591                         gr->clear_events();
 592                 }
 593         }
 594
 595         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 596                 delete *i;
 597         }
 598
 599         _events.clear();
 600         _pgm_changes.clear();
 601         _sys_exes.clear();
 602         _optimization_iterator = _events.end();
 603 }
 604
 605
 606 void
 607 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 608 {
 609         _model = model;
 610         content_connection.disconnect ();
 611         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 612
 613         clear_events ();
 614
 615         if (_enable_display) {
 616                 redisplay_model();
 617         }
 618 }
 619
 620
 621 void
 622 MidiRegionView::start_delta_command(string name)
 623 {
 624         if (!_delta_command) {
 625                 _delta_command = _model->new_delta_command(name);
 626         }
 627 }
 628
 629 void
 630 MidiRegionView::start_diff_command(string name)
 631 {
 632         if (!_diff_command) {
 633                 _diff_command = _model->new_diff_command(name);
 634         }
 635 }
 636
 637 void
 638 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 639 {
 640         if (_delta_command) {
 641                 _delta_command->add(note);
 642         }
 643         if (selected) {
 644                 _marked_for_selection.insert(note);
 645         }
 646         if (show_velocity) {
 647                 _marked_for_velocity.insert(note);
 648         }
 649 }
 650
 651 void
 652 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 653 {
 654         if (_delta_command && ev->note()) {
 655                 _delta_command->remove(ev->note());
 656         }
 657 }
 658
 659 void
 660 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 661                                  MidiModel::DiffCommand::Property property,
 662                                  uint8_t val)
 663 {
 664         if (_diff_command) {
 665                 _diff_command->change (ev->note(), property, val);
 666         }
 667 }
 668
 669 void
 670 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 671                                  MidiModel::DiffCommand::Property property,
 672                                  Evoral::MusicalTime val)
 673 {
 674         if (_diff_command) {
 675                 _diff_command->change (ev->note(), property, val);
 676         }
 677 }
 678
 679 void
 680 MidiRegionView::apply_delta()
 681 {
 682         if (!_delta_command) {
 683                 return;
 684         }
 685
 686         // Mark all selected notes for selection when model reloads
 687         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 688                 _marked_for_selection.insert((*i)->note());
 689         }
 690
 691         _model->apply_command(*trackview.session(), _delta_command);
 692         _delta_command = 0;
 693         midi_view()->midi_track()->playlist_modified();
 694
 695         _marked_for_selection.clear();
 696         _marked_for_velocity.clear();
 697 }
 698
 699 void
 700 MidiRegionView::apply_diff ()
 701 {
 702         if (!_diff_command) {
 703                 return;
 704         }
 705
 706         _model->apply_command(*trackview.session(), _diff_command);
 707         _diff_command = 0;
 708         midi_view()->midi_track()->playlist_modified();
 709
 710         _marked_for_velocity.clear();
 711 }
 712
 713 void
 714 MidiRegionView::apply_delta_as_subcommand()
 715 {
 716         if (!_delta_command) {
 717                 return;
 718         }
 719
 720         // Mark all selected notes for selection when model reloads
 721         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 722                 _marked_for_selection.insert((*i)->note());
 723         }
 724
 725         _model->apply_command_as_subcommand(*trackview.session(), _delta_command);
 726         _delta_command = 0;
 727         midi_view()->midi_track()->playlist_modified();
 728
 729         _marked_for_selection.clear();
 730         _marked_for_velocity.clear();
 731 }
 732
 733 void
 734 MidiRegionView::apply_diff_as_subcommand()
 735 {
 736         if (!_diff_command) {
 737                 return;
 738         }
 739
 740         // Mark all selected notes for selection when model reloads
 741         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 742                 _marked_for_selection.insert((*i)->note());
 743         }
 744
 745         _model->apply_command_as_subcommand(*trackview.session(), _diff_command);
 746         _diff_command = 0;
 747         midi_view()->midi_track()->playlist_modified();
 748
 749         _marked_for_selection.clear();
 750         _marked_for_velocity.clear();
 751 }
 752
 753 void
 754 MidiRegionView::abort_command()
 755 {
 756         delete _delta_command;
 757         _delta_command = 0;
 758         delete _diff_command;
 759         _diff_command = 0;
 760         clear_selection();
 761 }
 762
 763 CanvasNoteEvent*
 764 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 765 {
 766         if (_optimization_iterator != _events.end()) {
 767                 ++_optimization_iterator;
 768         }
 769
 770         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 771                 return *_optimization_iterator;
 772         }
 773
 774         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 775                 if ((*_optimization_iterator)->note() == note) {
 776                         return *_optimization_iterator;
 777                 }
 778         }
 779
 780         return 0;
 781 }
 782
 783 void
 784 MidiRegionView::redisplay_model()
 785 {
 786         // Don't redisplay the model if we're currently recording and displaying that
 787         if (_active_notes) {
 788                 return;
 789         }
 790
 791         if (!_model) {
 792                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 793                 return;
 794         }
 795
 796         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 797                 (*i)->invalidate ();
 798         }
 799
 800         MidiModel::ReadLock lock(_model->read_lock());
 801
 802         MidiModel::Notes& notes (_model->notes());
 803         _optimization_iterator = _events.begin();
 804
 805         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 806
 807                 boost::shared_ptr<NoteType> note (*n);
 808                 CanvasNoteEvent* cne;
 809                 bool visible;
 810
 811                 if (note_in_region_range (note, visible)) {
 812
 813                         if ((cne = find_canvas_note (note)) != 0) {
 814
 815                                 cne->validate ();
 816
 817                                 CanvasNote* cn;
 818                                 CanvasHit* ch;
 819
 820                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 821                                         update_note (cn);
 822                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 823                                         update_hit (ch);
 824                                 }
 825
 826                                 if (visible) {
 827                                         cne->show ();
 828                                 } else {
 829                                         cne->hide ();
 830                                 }
 831
 832                         } else {
 833
 834                                 add_note (note, visible);
 835                         }
 836
 837                 } else {
 838
 839                         if ((cne = find_canvas_note (note)) != 0) {
 840                                 cne->validate ();
 841                                 cne->hide ();
 842                         }
 843                 }
 844         }
 845
 846
 847         /* remove note items that are no longer valid */
 848
 849         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 850                 if (!(*i)->valid ()) {
 851                         delete *i;
 852                         i = _events.erase (i);
 853                 } else {
 854                         ++i;
 855                 }
 856         }
 857
 858         display_sysexes();
 859         display_program_changes();
 860
 861         _marked_for_selection.clear ();
 862         _marked_for_velocity.clear ();
 863
 864         /* we may have caused _events to contain things out of order (e.g. if a note
 865            moved earlier or later). we don't generally need them in time order, but
 866            make a note that a sort is required for those cases that require it.
 867         */
 868
 869         _sort_needed = true;
 870 }
 871
 872 void
 873 MidiRegionView::display_program_changes()
 874 {
 875         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 876         if (!control) {
 877                 return;
 878         }
 879
 880         Glib::Mutex::Lock lock (control->list()->lock());
 881
 882         uint8_t channel = control->parameter().channel();
 883
 884         for (AutomationList::const_iterator event = control->list()->begin();
 885                         event != control->list()->end(); ++event) {
 886                 double event_time     = (*event)->when;
 887                 double program_number = floor((*event)->value + 0.5);
 888
 889                 // Get current value of bank select MSB at time of the program change
 890                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 891                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 892                 uint8_t msb = 0;
 893                 if (msb_control != 0) {
 894                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 895                 }
 896
 897                 // Get current value of bank select LSB at time of the program change
 898                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 899                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 900                 uint8_t lsb = 0;
 901                 if (lsb_control != 0) {
 902                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 903                 }
 904
 905                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 906
 907                 boost::shared_ptr<MIDI::Name::Patch> patch =
 908                         MIDI::Name::MidiPatchManager::instance().find_patch(
 909                                         _model_name, _custom_device_mode, channel, patch_key);
 910
 911                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 912
 913                 if (patch != 0) {
 914                         add_pgm_change(program_change, patch->name());
 915                 } else {
 916                         char buf[4];
 917                         snprintf(buf, 4, "%d", int(program_number));
 918                         add_pgm_change(program_change, buf);
 919                 }
 920         }
 921 }
 922
 923 void
 924 MidiRegionView::display_sysexes()
 925 {
 926         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 927                 Evoral::MusicalTime time = (*i)->time();
 928                 assert(time >= 0);
 929
 930                 ostringstream str;
 931                 str << hex;
 932                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 933                         str << int((*i)->buffer()[b]);
 934                         if (b != (*i)->size() -1) {
 935                                 str << " ";
 936                         }
 937                 }
 938                 string text = str.str();
 939
 940                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 941
 942                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 943
 944                 double height = midi_stream_view()->contents_height();
 945
 946                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 947                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 948
 949                 // Show unless program change is beyond the region bounds
 950                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 951                         sysex->hide();
 952                 } else {
 953                         sysex->show();
 954                 }
 955
 956                 _sys_exes.push_back(sysex);
 957         }
 958 }
 959
 960
 961 MidiRegionView::~MidiRegionView ()
 962 {
 963         in_destructor = true;
 964
 965         note_delete_connection.disconnect ();
 966
 967         delete _list_editor;
 968
 969         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 970
 971         if (_active_notes) {
 972                 end_write();
 973         }
 974
 975         _selection.clear();
 976         clear_events();
 977         delete _note_group;
 978         delete _delta_command;
 979 }
 980
 981 void
 982 MidiRegionView::region_resized (const PropertyChange& what_changed)
 983 {
 984         RegionView::region_resized(what_changed);
 985
 986         if (what_changed.contains (ARDOUR::Properties::position)) {
 987                 set_duration(_region->length(), 0);
 988                 if (_enable_display) {
 989                         redisplay_model();
 990                 }
 991         }
 992 }
 993
 994 void
 995 MidiRegionView::reset_width_dependent_items (double pixel_width)
 996 {
 997         RegionView::reset_width_dependent_items(pixel_width);
 998         assert(_pixel_width == pixel_width);
 999
1000         if (_enable_display) {
1001                 redisplay_model();
1002         }
1003 }
1004
1005 void
1006 MidiRegionView::set_height (double height)
1007 {
1008         static const double FUDGE = 2.0;
1009         const double old_height = _height;
1010         RegionView::set_height(height);
1011         _height = height - FUDGE;
1012
1013         apply_note_range(midi_stream_view()->lowest_note(),
1014                          midi_stream_view()->highest_note(),
1015                          height != old_height + FUDGE);
1016
1017         if (name_pixbuf) {
1018                 name_pixbuf->raise_to_top();
1019         }
1020 }
1021
1022
1023 /** Apply the current note range from the stream view
1024  * by repositioning/hiding notes as necessary
1025  */
1026 void
1027 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1028 {
1029         if (!_enable_display) {
1030                 return;
1031         }
1032
1033         if (!force && _current_range_min == min && _current_range_max == max) {
1034                 return;
1035         }
1036
1037         _current_range_min = min;
1038         _current_range_max = max;
1039
1040         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1041                 CanvasNoteEvent* event = *i;
1042                 boost::shared_ptr<NoteType> note (event->note());
1043
1044                 if (note->note() < _current_range_min ||
1045                     note->note() > _current_range_max) {
1046                         event->hide();
1047                 } else {
1048                         event->show();
1049                 }
1050
1051                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1052
1053                         const double y1 = midi_stream_view()->note_to_y(note->note());
1054                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1055
1056                         cnote->property_y1() = y1;
1057                         cnote->property_y2() = y2;
1058
1059                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1060
1061                         double x = trackview.editor().frame_to_pixel(
1062                                 beats_to_frames(note->time()) - _region->start());
1063                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1064                         double y = midi_stream_view()->note_to_y(event->note()->note())
1065                                 + ((diamond_size-2.0) / 4.0);
1066
1067                         chit->set_height (diamond_size);
1068                         chit->move (x - chit->x1(), y - chit->y1());
1069                         chit->show ();
1070                 }
1071         }
1072 }
1073
1074 GhostRegion*
1075 MidiRegionView::add_ghost (TimeAxisView& tv)
1076 {
1077         CanvasNote* note;
1078
1079         double unit_position = _region->position () / samples_per_unit;
1080         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1081         MidiGhostRegion* ghost;
1082
1083         if (mtv && mtv->midi_view()) {
1084                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1085                    to allow having midi notes on top of note lines and waveforms.
1086                  */
1087                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1088         } else {
1089                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1090         }
1091
1092         ghost->set_height ();
1093         ghost->set_duration (_region->length() / samples_per_unit);
1094         ghosts.push_back (ghost);
1095
1096         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1097                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1098                         ghost->add_note(note);
1099                 }
1100         }
1101
1102         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1103
1104         return ghost;
1105 }
1106
1107
1108 /** Begin tracking note state for successive calls to add_event
1109  */
1110 void
1111 MidiRegionView::begin_write()
1112 {
1113         assert(!_active_notes);
1114         _active_notes = new CanvasNote*[128];
1115         for (unsigned i=0; i < 128; ++i) {
1116                 _active_notes[i] = 0;
1117         }
1118 }
1119
1120
1121 /** Destroy note state for add_event
1122  */
1123 void
1124 MidiRegionView::end_write()
1125 {
1126         delete[] _active_notes;
1127         _active_notes = 0;
1128         _marked_for_selection.clear();
1129         _marked_for_velocity.clear();
1130 }
1131
1132
1133 /** Resolve an active MIDI note (while recording).
1134  */
1135 void
1136 MidiRegionView::resolve_note(uint8_t note, double end_time)
1137 {
1138         if (midi_view()->note_mode() != Sustained) {
1139                 return;
1140         }
1141
1142         if (_active_notes && _active_notes[note]) {
1143                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1144                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1145                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1146                 _active_notes[note] = 0;
1147         }
1148 }
1149
1150
1151 /** Extend active notes to rightmost edge of region (if length is changed)
1152  */
1153 void
1154 MidiRegionView::extend_active_notes()
1155 {
1156         if (!_active_notes) {
1157                 return;
1158         }
1159
1160         for (unsigned i=0; i < 128; ++i) {
1161                 if (_active_notes[i]) {
1162                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1163                 }
1164         }
1165 }
1166
1167 void
1168 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1169 {
1170         if (no_sound_notes || !trackview.editor().sound_notes()) {
1171                 return;
1172         }
1173
1174         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1175         assert(route_ui);
1176
1177         route_ui->midi_track()->write_immediate_event(
1178                         note->on_event().size(), note->on_event().buffer());
1179
1180         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1181         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1182                         * (1000 / (double)route_ui->session()->nominal_frame_rate());
1183         Glib::signal_timeout().connect(sigc::bind(sigc::mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1184                         note_length_ms, G_PRIORITY_DEFAULT);
1185 }
1186
1187 bool
1188 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1189 {
1190         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1191         assert(route_ui);
1192
1193         route_ui->midi_track()->write_immediate_event(
1194                         note->off_event().size(), note->off_event().buffer());
1195
1196         return false;
1197 }
1198
1199 bool
1200 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1201 {
1202         const nframes64_t note_start_frames = beats_to_frames(note->time());
1203
1204         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1205                 (note_start_frames < _region->start());
1206
1207         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1208                 (note->note() <= midi_stream_view()->highest_note());
1209
1210         return !outside;
1211 }
1212
1213 void
1214 MidiRegionView::update_note (CanvasNote* ev)
1215 {
1216         boost::shared_ptr<NoteType> note = ev->note();
1217
1218         const nframes64_t note_start_frames = beats_to_frames(note->time());
1219         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1220
1221         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1222         const double y1 = midi_stream_view()->note_to_y(note->note());
1223         const double note_endpixel =
1224                 trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1225
1226         ev->property_x1() = x;
1227         ev->property_y1() = y1;
1228         if (note->length() > 0) {
1229                 ev->property_x2() = note_endpixel;
1230         } else {
1231                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1232         }
1233         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1234
1235         if (note->length() == 0) {
1236                 if (_active_notes) {
1237                         assert(note->note() < 128);
1238                         // If this note is already active there's a stuck note,
1239                         // finish the old note rectangle
1240                         if (_active_notes[note->note()]) {
1241                                 CanvasNote* const old_rect = _active_notes[note->note()];
1242                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1243                                 old_rect->property_x2() = x;
1244                                 old_rect->property_outline_what() = (guint32) 0xF;
1245                         }
1246                         _active_notes[note->note()] = ev;
1247                 }
1248                 /* outline all but right edge */
1249                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1250         } else {
1251                 /* outline all edges */
1252                 ev->property_outline_what() = (guint32) 0xF;
1253         }
1254 }
1255
1256 void
1257 MidiRegionView::update_hit (CanvasHit* ev)
1258 {
1259         boost::shared_ptr<NoteType> note = ev->note();
1260
1261         const nframes64_t note_start_frames = beats_to_frames(note->time());
1262         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1263         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1264         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1265
1266         ev->move_to (x, y);
1267 }
1268
1269 /** Add a MIDI note to the view (with length).
1270  *
1271  * If in sustained mode, notes with length 0 will be considered active
1272  * notes, and resolve_note should be called when the corresponding note off
1273  * event arrives, to properly display the note.
1274  */
1275 void
1276 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1277 {
1278         CanvasNoteEvent* event = 0;
1279
1280         assert(note->time() >= 0);
1281         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1282
1283         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1284
1285         if (midi_view()->note_mode() == Sustained) {
1286
1287                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1288
1289                 update_note (ev_rect);
1290
1291                 event = ev_rect;
1292
1293                 MidiGhostRegion* gr;
1294
1295                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1296                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1297                                 gr->add_note(ev_rect);
1298                         }
1299                 }
1300
1301         } else if (midi_view()->note_mode() == Percussive) {
1302
1303                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1304
1305                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1306
1307                 update_hit (ev_diamond);
1308
1309                 event = ev_diamond;
1310
1311         } else {
1312                 event = 0;
1313         }
1314
1315         if (event) {
1316                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1317                         note_selected(event, true);
1318                 }
1319
1320                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1321                         event->show_velocity();
1322                 }
1323                 event->on_channel_selection_change(_last_channel_selection);
1324                 _events.push_back(event);
1325
1326                 if (visible) {
1327                         event->show();
1328                 } else {
1329                         event->hide ();
1330                 }
1331         }
1332 }
1333
1334 void
1335 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1336                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1337 {
1338         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1339
1340         start_delta_command (_("step add"));
1341         delta_add_note (new_note, true, false);
1342         apply_delta();
1343
1344         /* potentially extend region to hold new note */
1345
1346         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1347         nframes64_t region_end = _region->position() + _region->length() - 1;
1348
1349         if (end_frame > region_end) {
1350                 _region->set_length (end_frame, this);
1351         } else {
1352                 redisplay_model ();
1353         }
1354 }
1355
1356 void
1357 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1358 {
1359         assert(program.time >= 0);
1360
1361         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1362         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1363
1364         double height = midi_stream_view()->contents_height();
1365
1366         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1367                         new CanvasProgramChange(*this, *group,
1368                                         displaytext,
1369                                         height,
1370                                         x, 1.0,
1371                                         _model_name,
1372                                         _custom_device_mode,
1373                                         program.time, program.channel, program.value));
1374
1375         // Show unless program change is beyond the region bounds
1376         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1377                 pgm_change->hide();
1378         } else {
1379                 pgm_change->show();
1380         }
1381
1382         _pgm_changes.push_back(pgm_change);
1383 }
1384
1385 void
1386 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1387 {
1388         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1389         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1390         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1391         float msb = -1.0;
1392         if (msb_control != 0) {
1393                 msb = int(msb_control->get_float(true, time));
1394                 cerr << "got msb " << msb;
1395         }
1396
1397         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1398         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1399         float lsb = -1.0;
1400         if (lsb_control != 0) {
1401                 lsb = lsb_control->get_float(true, time);
1402                 cerr << " got lsb " << lsb;
1403         }
1404
1405         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1406         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1407         float program_number = -1.0;
1408         if (program_control != 0) {
1409                 program_number = program_control->get_float(true, time);
1410                 cerr << " got program " << program_number << endl;
1411         }
1412
1413         key.msb = (int) floor(msb + 0.5);
1414         key.lsb = (int) floor(lsb + 0.5);
1415         key.program_number = (int) floor(program_number + 0.5);
1416         assert(key.is_sane());
1417 }
1418
1419
1420 void
1421 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1422 {
1423         // TODO: Get the real event here and alter them at the original times
1424         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1425         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1426         if (msb_control != 0) {
1427                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1428         }
1429
1430         // TODO: Get the real event here and alter them at the original times
1431         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1432         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1433         if (lsb_control != 0) {
1434                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1435         }
1436
1437         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1438         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1439
1440         assert(program_control != 0);
1441         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1442
1443         redisplay_model();
1444 }
1445
1446 void
1447 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1448 {
1449         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1450         alter_program_change(program_change_event, new_patch);
1451 }
1452
1453 void
1454 MidiRegionView::previous_program(CanvasProgramChange& program)
1455 {
1456         MIDI::Name::PatchPrimaryKey key;
1457         get_patch_key_at(program.event_time(), program.channel(), key);
1458
1459         boost::shared_ptr<MIDI::Name::Patch> patch =
1460                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1461                                 _model_name,
1462                                 _custom_device_mode,
1463                                 program.channel(),
1464                                 key);
1465
1466         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1467         if (patch) {
1468                 alter_program_change(program_change_event, patch->patch_primary_key());
1469         }
1470 }
1471
1472 void
1473 MidiRegionView::next_program(CanvasProgramChange& program)
1474 {
1475         MIDI::Name::PatchPrimaryKey key;
1476         get_patch_key_at(program.event_time(), program.channel(), key);
1477
1478         boost::shared_ptr<MIDI::Name::Patch> patch =
1479                 MIDI::Name::MidiPatchManager::instance().next_patch(
1480                                 _model_name,
1481                                 _custom_device_mode,
1482                                 program.channel(),
1483                                 key);
1484
1485         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1486         if (patch) {
1487                 alter_program_change(program_change_event, patch->patch_primary_key());
1488         }
1489 }
1490
1491 void
1492 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
1493 {
1494         if (_selection.empty()) {
1495                 return;
1496         }
1497
1498         if (_selection.erase (cne) > 0) {
1499                 cerr << "Erased a CNE from selection\n";
1500         }
1501 }
1502
1503 void
1504 MidiRegionView::delete_selection()
1505 {
1506         if (_selection.empty()) {
1507                 return;
1508         }
1509
1510         start_delta_command (_("delete selection"));
1511
1512         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1513                 if ((*i)->selected()) {
1514                         _delta_command->remove((*i)->note());
1515                 }
1516         }
1517
1518         _selection.clear();
1519
1520         apply_delta ();
1521 }
1522
1523 void
1524 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1525 {
1526         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1527                 if ((*i)->selected() && (*i) != ev) {
1528                         (*i)->selected(false);
1529                         (*i)->hide_velocity();
1530                 }
1531         }
1532
1533         _selection.clear();
1534 }
1535
1536 void
1537 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1538 {
1539         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1540                 if ((*i) != ev) {
1541
1542                         Selection::iterator tmp = i;
1543                         ++tmp;
1544
1545                         (*i)->selected (false);
1546                         _selection.erase (i);
1547
1548                         i = tmp;
1549
1550                 } else {
1551                         ++i;
1552                 }
1553         }
1554
1555         /* don't bother with removing this regionview from the editor selection,
1556            since we're about to add another note, and thus put/keep this
1557            regionview in the editor selection.
1558         */
1559
1560         if (!ev->selected()) {
1561                 add_to_selection (ev);
1562         }
1563 }
1564
1565 void
1566 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
1567 {
1568         uint8_t low_note = 127;
1569         uint8_t high_note = 0;
1570         MidiModel::Notes& notes (_model->notes());
1571         _optimization_iterator = _events.begin();
1572
1573         if (extend && _selection.empty()) {
1574                 extend = false;
1575         }
1576
1577         if (extend) {
1578
1579                 /* scan existing selection to get note range */
1580
1581                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1582                         if ((*i)->note()->note() < low_note) {
1583                                 low_note = (*i)->note()->note();
1584                         }
1585                         if ((*i)->note()->note() > high_note) {
1586                                 high_note = (*i)->note()->note();
1587                         }
1588                 }
1589
1590                 low_note = min (low_note, notenum);
1591                 high_note = max (high_note, notenum);
1592         }
1593
1594         no_sound_notes = true;
1595
1596         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1597
1598                 boost::shared_ptr<NoteType> note (*n);
1599                 CanvasNoteEvent* cne;
1600                 bool select = false;
1601
1602                 if (((0x0001 << note->channel()) & channel_mask) != 0) {
1603                         if (extend) {
1604                                 if ((note->note() >= low_note && note->note() <= high_note)) {
1605                                         select = true;
1606                                 }
1607                         } else if (note->note() == notenum) {
1608                                 select = true;
1609                         }
1610                 }
1611
1612                 if (select) {
1613                         if ((cne = find_canvas_note (note)) != 0) {
1614                                 // extend is false because we've taken care of it,
1615                                 // since it extends by time range, not pitch.
1616                                 note_selected (cne, add, false);
1617                         }
1618                 }
1619
1620                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
1621
1622         }
1623
1624         no_sound_notes = false;
1625 }
1626
1627 void
1628 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
1629 {
1630         MidiModel::Notes& notes (_model->notes());
1631         _optimization_iterator = _events.begin();
1632
1633         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1634
1635                 boost::shared_ptr<NoteType> note (*n);
1636                 CanvasNoteEvent* cne;
1637
1638                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
1639                         if ((cne = find_canvas_note (note)) != 0) {
1640                                 if (cne->selected()) {
1641                                         note_deselected (cne);
1642                                 } else {
1643                                         note_selected (cne, true, false);
1644                                 }
1645                         }
1646                 }
1647         }
1648 }
1649
1650 void
1651 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1652 {
1653         if (!add) {
1654                 clear_selection_except(ev);
1655         }
1656
1657         if (!extend) {
1658
1659                 if (!ev->selected()) {
1660                         add_to_selection (ev);
1661                 }
1662
1663         } else {
1664                 /* find end of latest note selected, select all between that and the start of "ev" */
1665
1666                 Evoral::MusicalTime earliest = DBL_MAX;
1667                 Evoral::MusicalTime latest = 0;
1668
1669                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1670                         if ((*i)->note()->end_time() > latest) {
1671                                 latest = (*i)->note()->end_time();
1672                         }
1673                         if ((*i)->note()->time() < earliest) {
1674                                 earliest = (*i)->note()->time();
1675                         }
1676                 }
1677
1678                 if (ev->note()->end_time() > latest) {
1679                         latest = ev->note()->end_time();
1680                 }
1681
1682                 if (ev->note()->time() < earliest) {
1683                         earliest = ev->note()->time();
1684                 }
1685
1686                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1687
1688                         /* find notes entirely within OR spanning the earliest..latest range */
1689
1690                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1691                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1692                                 add_to_selection (*i);
1693                         }
1694
1695 #if 0
1696                         /* if events were guaranteed to be time sorted, we could do this.
1697                            but as of sept 10th 2009, they no longer are.
1698                         */
1699
1700                         if ((*i)->note()->time() > latest) {
1701                                 break;
1702                         }
1703 #endif
1704                 }
1705         }
1706 }
1707
1708 void
1709 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1710 {
1711         remove_from_selection (ev);
1712 }
1713
1714 void
1715 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1716 {
1717         if (x1 > x2) {
1718                 swap (x1, x2);
1719         }
1720
1721         if (y1 > y2) {
1722                 swap (y1, y2);
1723         }
1724
1725         // TODO: Make this faster by storing the last updated selection rect, and only
1726         // adjusting things that are in the area that appears/disappeared.
1727         // We probably need a tree to be able to find events in O(log(n)) time.
1728
1729         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1730
1731                 /* check if any corner of the note is inside the rect
1732
1733                    Notes:
1734                      1) this is computing "touched by", not "contained by" the rect.
1735                      2) this does not require that events be sorted in time.
1736                  */
1737
1738                 const double ix1 = (*i)->x1();
1739                 const double ix2 = (*i)->x2();
1740                 const double iy1 = (*i)->y1();
1741                 const double iy2 = (*i)->y2();
1742
1743                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1744                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1745                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1746                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1747
1748                         // Inside rectangle
1749                         if (!(*i)->selected()) {
1750                                 add_to_selection (*i);
1751                         }
1752                 } else if ((*i)->selected()) {
1753                         // Not inside rectangle
1754                         remove_from_selection (*i);
1755                 }
1756         }
1757 }
1758
1759 void
1760 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1761 {
1762         Selection::iterator i = _selection.find (ev);
1763
1764         if (i != _selection.end()) {
1765                 _selection.erase (i);
1766         }
1767
1768         ev->selected (false);
1769         ev->hide_velocity ();
1770
1771         if (_selection.empty()) {
1772                 PublicEditor& editor (trackview.editor());
1773                 editor.get_selection().remove (this);
1774         }
1775 }
1776
1777 void
1778 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1779 {
1780         bool add_mrv_selection = false;
1781
1782         if (_selection.empty()) {
1783                 add_mrv_selection = true;
1784         }
1785
1786         if (_selection.insert (ev).second) {
1787                 ev->selected (true);
1788                 play_midi_note ((ev)->note());
1789         }
1790
1791         if (add_mrv_selection) {
1792                 PublicEditor& editor (trackview.editor());
1793                 editor.get_selection().add (this);
1794         }
1795 }
1796
1797 void
1798 MidiRegionView::move_selection(double dx, double dy)
1799 {
1800         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1801                 (*i)->move_event(dx, dy);
1802         }
1803 }
1804
1805 void
1806 MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
1807 {
1808         assert (!_selection.empty());
1809
1810         uint8_t lowest_note_in_selection  = 127;
1811         uint8_t highest_note_in_selection = 0;
1812         uint8_t highest_note_difference = 0;
1813
1814         // find highest and lowest notes first
1815
1816         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1817                 uint8_t pitch = (*i)->note()->note();
1818                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1819                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1820         }
1821
1822         /*
1823         cerr << "dnote: " << (int) dnote << endl;
1824         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1825              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1826         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1827              << int(highest_note_in_selection) << endl;
1828         cerr << "selection size: " << _selection.size() << endl;
1829         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1830         */
1831
1832         // Make sure the note pitch does not exceed the MIDI standard range
1833         if (highest_note_in_selection + dnote > 127) {
1834                 highest_note_difference = highest_note_in_selection - 127;
1835         }
1836
1837         start_diff_command(_("move notes"));
1838
1839         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1840
1841                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1842
1843                 if (dt >= 0) {
1844                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1845                 } else {
1846                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1847                 }
1848
1849                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1850
1851                 if (new_time < 0) {
1852                         continue;
1853                 }
1854
1855                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1856
1857                 uint8_t original_pitch = (*i)->note()->note();
1858                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1859
1860                 // keep notes in standard midi range
1861                 clamp_to_0_127(new_pitch);
1862
1863                 // keep original pitch if note is dragged outside valid midi range
1864                 if ((original_pitch != 0 && new_pitch == 0)
1865                                 || (original_pitch != 127 && new_pitch == 127)) {
1866                         new_pitch = original_pitch;
1867                 }
1868
1869                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1870                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1871
1872                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1873         }
1874
1875         apply_diff();
1876
1877         // care about notes being moved beyond the upper/lower bounds on the canvas
1878         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1879             highest_note_in_selection > midi_stream_view()->highest_note()) {
1880                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1881         }
1882 }
1883
1884 nframes64_t
1885 MidiRegionView::snap_pixel_to_frame(double x)
1886 {
1887         PublicEditor& editor = trackview.editor();
1888         // x is region relative, convert it to global absolute frames
1889         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1890         editor.snap_to(frame);
1891         return frame - _region->position(); // convert back to region relative
1892 }
1893
1894 nframes64_t
1895 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1896 {
1897         PublicEditor& editor = trackview.editor();
1898         // x is region relative, convert it to global absolute frames
1899         nframes64_t frame = x + _region->position();
1900         editor.snap_to(frame);
1901         return frame - _region->position(); // convert back to region relative
1902 }
1903
1904 double
1905 MidiRegionView::snap_to_pixel(double x)
1906 {
1907         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1908 }
1909
1910 double
1911 MidiRegionView::get_position_pixels()
1912 {
1913         nframes64_t region_frame = get_position();
1914         return trackview.editor().frame_to_pixel(region_frame);
1915 }
1916
1917 double
1918 MidiRegionView::get_end_position_pixels()
1919 {
1920         nframes64_t frame = get_position() + get_duration ();
1921         return trackview.editor().frame_to_pixel(frame);
1922 }
1923
1924 nframes64_t
1925 MidiRegionView::beats_to_frames(double beats) const
1926 {
1927         return _time_converter.to(beats);
1928 }
1929
1930 double
1931 MidiRegionView::frames_to_beats(nframes64_t frames) const
1932 {
1933         return _time_converter.from(frames);
1934 }
1935
1936 void
1937 MidiRegionView::begin_resizing (bool /*at_front*/)
1938 {
1939         _resize_data.clear();
1940
1941         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1942                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1943
1944                 // only insert CanvasNotes into the map
1945                 if (note) {
1946                         NoteResizeData *resize_data = new NoteResizeData();
1947                         resize_data->canvas_note = note;
1948
1949                         // create a new SimpleRect from the note which will be the resize preview
1950                         SimpleRect *resize_rect = new SimpleRect(
1951                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1952
1953                         // calculate the colors: get the color settings
1954                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1955                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1956                                         128);
1957
1958                         // make the resize preview notes more transparent and bright
1959                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1960
1961                         // calculate color based on note velocity
1962                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1963                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1964                                         fill_color,
1965                                         0.85);
1966
1967                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1968                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1969
1970                         resize_data->resize_rect = resize_rect;
1971                         _resize_data.push_back(resize_data);
1972                 }
1973         }
1974 }
1975
1976 void
1977 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1978 {
1979         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1980                 SimpleRect* resize_rect = (*i)->resize_rect;
1981                 CanvasNote* canvas_note = (*i)->canvas_note;
1982                 double current_x;
1983
1984                 if (at_front) {
1985                         if (relative) {
1986                                 current_x = canvas_note->x1() + delta_x;
1987                         } else {
1988                                 // x is in track relative, transform it to region relative
1989                                 current_x = delta_x - get_position_pixels();
1990                         }
1991                 } else {
1992                         if (relative) {
1993                                 current_x = canvas_note->x2() + delta_x;
1994                         } else {
1995                                 // x is in track relative, transform it to region relative
1996                                 current_x = delta_x - get_end_position_pixels ();
1997                         }
1998                 }
1999
2000                 if (at_front) {
2001                         resize_rect->property_x1() = snap_to_pixel(current_x);
2002                         resize_rect->property_x2() = canvas_note->x2();
2003                 } else {
2004                         resize_rect->property_x2() = snap_to_pixel(current_x);
2005                         resize_rect->property_x1() = canvas_note->x1();
2006                 }
2007         }
2008 }
2009
2010 void
2011 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
2012 {
2013         start_diff_command(_("resize notes"));
2014
2015         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2016                 CanvasNote*  canvas_note = (*i)->canvas_note;
2017                 SimpleRect*  resize_rect = (*i)->resize_rect;
2018                 const double region_start = get_position_pixels();
2019                 double current_x;
2020
2021                 if (at_front) {
2022                         if (relative) {
2023                                 current_x = canvas_note->x1() + delta_x;
2024                         } else {
2025                                 // x is in track relative, transform it to region relative
2026                                 current_x = region_start + delta_x;
2027                         }
2028                 } else {
2029                         if (relative) {
2030                                 current_x = canvas_note->x2() + delta_x;
2031                         } else {
2032                                 // x is in track relative, transform it to region relative
2033                                 current_x = region_start + delta_x;
2034                         }
2035                 }
2036
2037                 current_x = snap_pixel_to_frame (current_x);
2038                 current_x = frames_to_beats (current_x);
2039
2040                 if (at_front && current_x < canvas_note->note()->end_time()) {
2041                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
2042
2043                         double len = canvas_note->note()->time() - current_x;
2044                         len += canvas_note->note()->length();
2045
2046                         if (len > 0) {
2047                                 /* XXX convert to beats */
2048                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
2049                         }
2050                 }
2051
2052                 if (!at_front) {
2053                         double len = current_x - canvas_note->note()->time();
2054
2055                         if (len > 0) {
2056                                 /* XXX convert to beats */
2057                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
2058                         }
2059                 }
2060
2061                 delete resize_rect;
2062                 delete (*i);
2063         }
2064
2065         _resize_data.clear();
2066         apply_diff();
2067 }
2068
2069 void
2070 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
2071 {
2072         uint8_t new_velocity;
2073
2074         if (relative) {
2075                 new_velocity = event->note()->velocity() + velocity;
2076                 clamp_to_0_127(new_velocity);
2077         } else {
2078                 new_velocity = velocity;
2079         }
2080
2081         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
2082 }
2083
2084 void
2085 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
2086 {
2087         uint8_t new_note;
2088
2089         if (relative) {
2090                 new_note = event->note()->note() + note;
2091         } else {
2092                 new_note = note;
2093         }
2094
2095         clamp_to_0_127 (new_note);
2096         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
2097 }
2098
2099 void
2100 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2101 {
2102         bool change_start = false;
2103         bool change_length = false;
2104         Evoral::MusicalTime new_start;
2105         Evoral::MusicalTime new_length;
2106
2107         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2108
2109            front_delta: if positive - move the start of the note later in time (shortening it)
2110                         if negative - move the start of the note earlier in time (lengthening it)
2111
2112            end_delta:   if positive - move the end of the note later in time (lengthening it)
2113                         if negative - move the end of the note earlier in time (shortening it)
2114          */
2115
2116         if (front_delta) {
2117                 if (front_delta < 0) {
2118
2119                         if (event->note()->time() < -front_delta) {
2120                                 new_start = 0;
2121                         } else {
2122                                 new_start = event->note()->time() + front_delta; // moves earlier
2123                         }
2124
2125                         /* start moved toward zero, so move the end point out to where it used to be.
2126                            Note that front_delta is negative, so this increases the length.
2127                         */
2128
2129                         new_length = event->note()->length() - front_delta;
2130                         change_start = true;
2131                         change_length = true;
2132
2133                 } else {
2134
2135                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2136
2137                         if (new_pos < event->note()->end_time()) {
2138                                 new_start = event->note()->time() + front_delta;
2139                                 /* start moved toward the end, so move the end point back to where it used to be */
2140                                 new_length = event->note()->length() - front_delta;
2141                                 change_start = true;
2142                                 change_length = true;
2143                         }
2144                 }
2145
2146         }
2147
2148         if (end_delta) {
2149                 bool can_change = true;
2150                 if (end_delta < 0) {
2151                         if (event->note()->length() < -end_delta) {
2152                                 can_change = false;
2153                         }
2154                 }
2155
2156                 if (can_change) {
2157                         new_length = event->note()->length() + end_delta;
2158                         change_length = true;
2159                 }
2160         }
2161
2162         if (change_start) {
2163                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2164         }
2165
2166         if (change_length) {
2167                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2168         }
2169 }
2170
2171 void
2172 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2173 {
2174         Evoral::MusicalTime new_time;
2175
2176         if (relative) {
2177                 if (delta < 0.0) {
2178                         if (event->note()->time() < -delta) {
2179                                 new_time = 0;
2180                         } else {
2181                                 new_time = event->note()->time() + delta;
2182                         }
2183                 } else {
2184                         new_time = event->note()->time() + delta;
2185                 }
2186         } else {
2187                 new_time = delta;
2188         }
2189
2190         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2191 }
2192
2193 void
2194 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2195 {
2196         int8_t delta;
2197
2198         if (_selection.empty()) {
2199                 return;
2200         }
2201
2202         if (fine) {
2203                 delta = 1;
2204         } else {
2205                 delta = 10;
2206         }
2207
2208         if (!up) {
2209                 delta = -delta;
2210         }
2211
2212         if (!allow_smush) {
2213                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2214                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2215                                 return;
2216                         }
2217                 }
2218         }
2219
2220         start_diff_command(_("change velocities"));
2221
2222         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2223                 Selection::iterator next = i;
2224                 ++next;
2225                 change_note_velocity (*i, delta, true);
2226                 i = next;
2227         }
2228
2229         apply_diff();
2230 }
2231
2232
2233 void
2234 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2235 {
2236         if (_selection.empty()) {
2237                 return;
2238         }
2239
2240         int8_t delta;
2241
2242         if (fine) {
2243                 delta = 1;
2244         } else {
2245                 delta = 12;
2246         }
2247
2248         if (!up) {
2249                 delta = -delta;
2250         }
2251
2252         if (!allow_smush) {
2253                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2254                         if (!up) {
2255                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2256                                         return;
2257                                 }
2258                         } else {
2259                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2260                                         return;
2261                                 }
2262                         }
2263                 }
2264         }
2265
2266         start_diff_command (_("transpose"));
2267
2268         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2269                 Selection::iterator next = i;
2270                 ++next;
2271                 change_note_note (*i, delta, true);
2272                 i = next;
2273         }
2274
2275         apply_diff ();
2276 }
2277
2278 void
2279 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2280 {
2281         Evoral::MusicalTime delta;
2282
2283         if (fine) {
2284                 delta = 1.0/128.0;
2285         } else {
2286                 /* grab the current grid distance */
2287                 bool success;
2288                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2289                 if (!success) {
2290                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2291                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2292                         return;
2293                 }
2294         }
2295
2296         if (shorter) {
2297                 delta = -delta;
2298         }
2299
2300         start_diff_command (_("change note lengths"));
2301
2302         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2303                 Selection::iterator next = i;
2304                 ++next;
2305
2306                 /* note the negation of the delta for start */
2307
2308                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2309                 i = next;
2310         }
2311
2312         apply_diff ();
2313
2314 }
2315
2316 void
2317 MidiRegionView::nudge_notes (bool forward)
2318 {
2319         if (_selection.empty()) {
2320                 return;
2321         }
2322
2323         /* pick a note as the point along the timeline to get the nudge distance.
2324            its not necessarily the earliest note, so we may want to pull the notes out
2325            into a vector and sort before using the first one.
2326         */
2327
2328         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2329         nframes64_t unused;
2330         nframes64_t distance;
2331
2332         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2333
2334                 /* grid is off - use nudge distance */
2335
2336                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2337
2338         } else {
2339
2340                 /* use grid */
2341
2342                 nframes64_t next_pos = ref_point;
2343
2344                 if (forward) {
2345                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2346                         next_pos += 1;
2347                 } else {
2348                         if (next_pos == 0) {
2349                                 return;
2350                         }
2351                         next_pos -= 1;
2352                 }
2353
2354                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2355                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2356                 distance = ref_point - next_pos;
2357                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2358         }
2359
2360         if (distance == 0) {
2361                 return;
2362         }
2363
2364         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2365
2366         if (!forward) {
2367                 delta = -delta;
2368         }
2369
2370         start_diff_command (_("nudge"));
2371
2372         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2373                 Selection::iterator next = i;
2374                 ++next;
2375                 change_note_time (*i, delta, true);
2376                 i = next;
2377         }
2378
2379         apply_diff ();
2380 }
2381
2382 void
2383 MidiRegionView::change_channel(uint8_t channel)
2384 {
2385         start_diff_command(_("change channel"));
2386         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2387                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2388         }
2389         apply_diff();
2390 }
2391
2392
2393 void
2394 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2395 {
2396         if (_mouse_state == SelectTouchDragging) {
2397                 note_selected(ev, true);
2398         }
2399
2400         char buf[12];
2401         snprintf (buf, sizeof (buf), "%s (%d)", Evoral::midi_note_name (ev->note()->note()).c_str(), (int) ev->note()->note());
2402         PublicEditor& editor (trackview.editor());
2403         editor.show_verbose_canvas_cursor_with (buf);
2404 }
2405
2406 void
2407 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2408 {
2409         PublicEditor& editor (trackview.editor());
2410         editor.hide_verbose_canvas_cursor ();
2411 }
2412
2413
2414 void
2415 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2416 {
2417         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2418         if (msrc)
2419                 display_model(msrc->model());
2420 }
2421
2422 void
2423 MidiRegionView::set_frame_color()
2424 {
2425         if (frame) {
2426                 if (_selected && should_show_selection) {
2427                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2428                 } else {
2429                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2430                 }
2431         }
2432 }
2433
2434 void
2435 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2436 {
2437         switch (mode) {
2438         case AllChannels:
2439         case FilterChannels:
2440                 _force_channel = -1;
2441                 break;
2442         case ForceChannel:
2443                 _force_channel = mask;
2444                 mask = 0xFFFF; // Show all notes as active (below)
2445         };
2446
2447         // Update notes for selection
2448         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2449                 (*i)->on_channel_selection_change(mask);
2450         }
2451
2452         _last_channel_selection = mask;
2453 }
2454
2455 void
2456 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2457 {
2458         _model_name         = model;
2459         _custom_device_mode = custom_device_mode;
2460         redisplay_model();
2461 }
2462
2463 void
2464 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2465 {
2466         if (_selection.empty()) {
2467                 return;
2468         }
2469
2470         PublicEditor& editor (trackview.editor());
2471
2472         switch (op) {
2473         case Cut:
2474         case Copy:
2475                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2476                 break;
2477         default:
2478                 break;
2479         }
2480
2481         if (op != Copy) {
2482
2483                 start_delta_command();
2484
2485                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2486                         switch (op) {
2487                         case Copy:
2488                                 break;
2489                         case Cut:
2490                         case Clear:
2491                                 delta_remove_note (*i);
2492                                 break;
2493                         }
2494                 }
2495
2496                 apply_delta();
2497         }
2498 }
2499
2500 MidiCutBuffer*
2501 MidiRegionView::selection_as_cut_buffer () const
2502 {
2503         Notes notes;
2504
2505         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2506                 NoteType* n = (*i)->note().get();
2507                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
2508         }
2509
2510         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2511         cb->set (notes);
2512
2513         return cb;
2514 }
2515
2516 void
2517 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2518 {
2519         if (mcb.empty()) {
2520                 return;
2521         }
2522
2523         start_delta_command (_("paste"));
2524
2525         Evoral::MusicalTime beat_delta;
2526         Evoral::MusicalTime paste_pos_beats;
2527         Evoral::MusicalTime duration;
2528         Evoral::MusicalTime end_point;
2529
2530         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2531         paste_pos_beats = frames_to_beats (pos - _region->position());
2532         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2533         paste_pos_beats = 0;
2534
2535         _selection.clear ();
2536
2537         for (int n = 0; n < (int) times; ++n) {
2538
2539                 cerr << "Pasting " << mcb.notes().size() << " for the " << n+1 << "th time\n";
2540
2541                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2542
2543                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2544                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2545
2546                         /* make all newly added notes selected */
2547
2548                         delta_add_note (copied_note, true);
2549                         end_point = copied_note->end_time();
2550                 }
2551
2552                 paste_pos_beats += duration;
2553         }
2554
2555         /* if we pasted past the current end of the region, extend the region */
2556
2557         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2558         nframes64_t region_end = _region->position() + _region->length() - 1;
2559
2560         if (end_frame > region_end) {
2561
2562                 cerr << "region end is now " << end_frame << " to extend from " << region_end << endl;
2563
2564                 trackview.session()->begin_reversible_command (_("paste"));
2565
2566                 _region->clear_history ();
2567                 _region->set_length (end_frame, this);
2568                 trackview.session()->add_command (new StatefulDiffCommand (_region));
2569         }
2570
2571         cerr << "region end finally at " << _region->position() + _region->length() - 1;
2572         apply_delta ();
2573 }
2574
2575 struct EventNoteTimeEarlyFirstComparator {
2576     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2577             return a->note()->time() < b->note()->time();
2578     }
2579 };
2580
2581 void
2582 MidiRegionView::time_sort_events ()
2583 {
2584         if (!_sort_needed) {
2585                 return;
2586         }
2587
2588         EventNoteTimeEarlyFirstComparator cmp;
2589         _events.sort (cmp);
2590
2591         _sort_needed = false;
2592 }
2593
2594 void
2595 MidiRegionView::goto_next_note ()
2596 {
2597         // nframes64_t pos = -1;
2598         bool use_next = false;
2599
2600         if (_events.back()->selected()) {
2601                 return;
2602         }
2603
2604         time_sort_events ();
2605
2606         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2607                 if ((*i)->selected()) {
2608                         use_next = true;
2609                         continue;
2610                 } else if (use_next) {
2611                         unique_select (*i);
2612                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2613                         return;
2614                 }
2615         }
2616
2617         /* use the first one */
2618
2619         unique_select (_events.front());
2620
2621 }
2622
2623 void
2624 MidiRegionView::goto_previous_note ()
2625 {
2626         // nframes64_t pos = -1;
2627         bool use_next = false;
2628
2629         if (_events.front()->selected()) {
2630                 return;
2631         }
2632
2633         time_sort_events ();
2634
2635         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2636                 if ((*i)->selected()) {
2637                         use_next = true;
2638                         continue;
2639                 } else if (use_next) {
2640                         unique_select (*i);
2641                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2642                         return;
2643                 }
2644         }
2645
2646         /* use the last one */
2647
2648         unique_select (*(_events.rbegin()));
2649 }
2650
2651 void
2652 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
2653 {
2654         bool had_selected = false;
2655
2656         time_sort_events ();
2657
2658         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2659                 if ((*i)->selected()) {
2660                         selected.insert ((*i)->note());
2661                         had_selected = true;
2662                 }
2663         }
2664
2665         if (allow_all_if_none_selected && !had_selected) {
2666                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2667                         selected.insert ((*i)->note());
2668                 }
2669         }
2670 }