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
  24 #include <gtkmm.h>
  25
  26 #include <gtkmm2ext/gtk_ui.h>
  27
  28 #include <sigc++/signal.h>
  29
  30 #include <ardour/playlist.h>
  31 #include <ardour/tempo.h>
  32 #include <ardour/midi_region.h>
  33 #include <ardour/midi_source.h>
  34 #include <ardour/midi_diskstream.h>
  35 #include <ardour/midi_events.h>
  36 #include <ardour/midi_model.h>
  37
  38 #include "streamview.h"
  39 #include "midi_region_view.h"
  40 #include "midi_streamview.h"
  41 #include "midi_time_axis.h"
  42 #include "simpleline.h"
  43 #include "canvas-hit.h"
  44 #include "public_editor.h"
  45 #include "ghostregion.h"
  46 #include "midi_time_axis.h"
  47 #include "automation_time_axis.h"
  48 #include "automation_region_view.h"
  49 #include "utils.h"
  50 #include "midi_util.h"
  51 #include "gui_thread.h"
  52 #include "keyboard.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace sigc;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Editing;
  60 using namespace ArdourCanvas;
  61
  62 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color)
  63         : RegionView (parent, tv, r, spu, basic_color)
  64         , _default_note_length(0.0)
  65         , _active_notes(0)
  66         , _note_group(new ArdourCanvas::Group(*parent))
  67         , _delta_command(NULL)
  68         , _mouse_state(None)
  69         , _pressed_button(0)
  70 {
  71         group->lower_to_bottom();
  72         _note_group->raise_to_top();
  73
  74         frame->property_fill_color_rgba() = 0xff000033;
  75 }
  76
  77 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color, TimeAxisViewItem::Visibility visibility)
  78         : RegionView (parent, tv, r, spu, basic_color, visibility)
  79         , _default_note_length(0.0)
  80         , _active_notes(0)
  81         , _note_group(new ArdourCanvas::Group(*parent))
  82         , _delta_command(NULL)
  83         , _mouse_state(None)
  84         , _pressed_button(0)
  85 {
  86         _note_group->raise_to_top();
  87 }
  88
  89 void
  90 MidiRegionView::init (Gdk::Color& basic_color, bool wfd)
  91 {
  92         if (wfd)
  93                 midi_region()->midi_source(0)->load_model();
  94
  95         const Meter& m = trackview.session().tempo_map().meter_at(_region->position());
  96         const Tempo& t = trackview.session().tempo_map().tempo_at(_region->position());
  97         _default_note_length = m.frames_per_bar(t, trackview.session().frame_rate())
  98                         / m.beats_per_bar();
  99
 100         _model = midi_region()->midi_source(0)->model();
 101         _enable_display = false;
 102
 103         RegionView::init(basic_color, false);
 104
 105         compute_colors (basic_color);
 106
 107         reset_width_dependent_items ((double) _region->length() / samples_per_unit);
 108
 109         set_y_position_and_height (0, trackview.height);
 110
 111         region_muted ();
 112         region_resized (BoundsChanged);
 113         region_locked ();
 114
 115         _region->StateChanged.connect (mem_fun(*this, &MidiRegionView::region_changed));
 116
 117         set_colors ();
 118
 119         _enable_display = true;
 120
 121         if (_model) {
 122                 if (wfd) {
 123                         redisplay_model();
 124                 }
 125                 _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 126         }
 127
 128         midi_region()->midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegionView::switch_source));
 129
 130         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 131
 132 }
 133
 134 bool
 135 MidiRegionView::canvas_event(GdkEvent* ev)
 136 {
 137         static bool delete_mod = false;
 138         static Editing::MidiEditMode original_mode;
 139
 140         static double drag_start_x, drag_start_y;
 141         static double last_x, last_y;
 142         double event_x, event_y;
 143         nframes_t event_frame = 0;
 144
 145         static ArdourCanvas::SimpleRect* drag_rect = NULL;
 146
 147         if (trackview.editor.current_mouse_mode() != MouseNote)
 148                 return false;
 149
 150         // Mmmm, spaghetti
 151
 152         switch (ev->type) {
 153         case GDK_KEY_PRESS:
 154                 if (ev->key.keyval == GDK_Delete && !delete_mod) {
 155                         delete_mod = true;
 156                         original_mode = trackview.editor.current_midi_edit_mode();
 157                         trackview.editor.set_midi_edit_mode(MidiEditErase);
 158                         start_delta_command();
 159                         _mouse_state = EraseTouchDragging;
 160                         return true;
 161                 } else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
 162                         _mouse_state = SelectTouchDragging;
 163                         return true;
 164                 }
 165                 return false;
 166
 167         case GDK_KEY_RELEASE:
 168                 if (ev->key.keyval == GDK_Delete) {
 169                         if (_mouse_state == EraseTouchDragging) {
 170                                 delete_selection();
 171                                 apply_command();
 172                         }
 173                         if (delete_mod) {
 174                                 trackview.editor.set_midi_edit_mode(original_mode);
 175                                 delete_mod = false;
 176                         }
 177                         return true;
 178                 } else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
 179                         _mouse_state = None;
 180                         return true;
 181                 }
 182                 return false;
 183
 184         case GDK_BUTTON_PRESS:
 185                 if (_mouse_state != SelectTouchDragging && _mouse_state != EraseTouchDragging)
 186                         _mouse_state = Pressed;
 187                 _pressed_button = ev->button.button;
 188                 return true;
 189
 190         case GDK_ENTER_NOTIFY:
 191                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 192                 Keyboard::magic_widget_grab_focus();
 193                 group->grab_focus();
 194                 break;
 195
 196         case GDK_MOTION_NOTIFY:
 197                 event_x = ev->motion.x;
 198                 event_y = ev->motion.y;
 199                 group->w2i(event_x, event_y);
 200
 201                 event_frame = trackview.editor.pixel_to_frame(event_x);
 202                 trackview.editor.snap_to(event_frame);
 203
 204                 switch (_mouse_state) {
 205                 case Pressed: // Drag start
 206
 207                         // Select drag start
 208                         if (_pressed_button == 1 && trackview.editor.current_midi_edit_mode() == MidiEditSelect) {
 209                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 210                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 211                                 last_x = event_x;
 212                                 last_y = event_y;
 213                                 drag_start_x = event_x;
 214                                 drag_start_y = event_y;
 215
 216                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 217                                 drag_rect->property_x1() = event_x;
 218                                 drag_rect->property_y1() = event_y;
 219                                 drag_rect->property_x2() = event_x;
 220                                 drag_rect->property_y2() = event_y;
 221                                 drag_rect->property_outline_what() = 0xFF;
 222                                 drag_rect->property_outline_color_rgba()
 223                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 224                                 drag_rect->property_fill_color_rgba()
 225                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 226
 227                                 _mouse_state = SelectRectDragging;
 228                                 return true;
 229
 230                         // Add note drag start
 231                         } else if (trackview.editor.current_midi_edit_mode() == MidiEditPencil) {
 232                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 233                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 234                                 last_x = event_x;
 235                                 last_y = event_y;
 236                                 drag_start_x = event_x;
 237                                 drag_start_y = event_y;
 238
 239                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 240                                 drag_rect->property_x1() = trackview.editor.frame_to_pixel(event_frame);
 241
 242                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(midi_stream_view()->y_to_note(event_y));
 243                                 drag_rect->property_x2() = event_x;
 244                                 drag_rect->property_y2() = drag_rect->property_y1() + floor(midi_stream_view()->note_height());
 245                                 drag_rect->property_outline_what() = 0xFF;
 246                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 247
 248                                 drag_rect->property_fill_color_rgba() = 0xFFFFFF66;
 249
 250                                 _mouse_state = AddDragging;
 251                                 return true;
 252                         }
 253
 254                         return false;
 255
 256                 case SelectRectDragging: // Select drag motion
 257                 case AddDragging: // Add note drag motion
 258                         if (ev->motion.is_hint) {
 259                                 int t_x;
 260                                 int t_y;
 261                                 GdkModifierType state;
 262                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 263                                 event_x = t_x;
 264                                 event_y = t_y;
 265                         }
 266
 267                         if (_mouse_state == AddDragging)
 268                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 269
 270                         if (drag_rect)
 271                                 if (event_x > drag_start_x)
 272                                         drag_rect->property_x2() = event_x;
 273                                 else
 274                                         drag_rect->property_x1() = event_x;
 275
 276                         if (drag_rect && _mouse_state == SelectRectDragging) {
 277                                 if (event_y > drag_start_y)
 278                                         drag_rect->property_y2() = event_y;
 279                                 else
 280                                         drag_rect->property_y1() = event_y;
 281
 282                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 283                         }
 284
 285                         last_x = event_x;
 286                         last_y = event_y;
 287
 288                 case EraseTouchDragging:
 289                 case SelectTouchDragging:
 290                         return false;
 291
 292                 default:
 293                         break;
 294                 }
 295                 break;
 296
 297         case GDK_BUTTON_RELEASE:
 298                 event_x = ev->motion.x;
 299                 event_y = ev->motion.y;
 300                 group->w2i(event_x, event_y);
 301                 group->ungrab(ev->button.time);
 302                 event_frame = trackview.editor.pixel_to_frame(event_x);
 303
 304                 switch (_mouse_state) {
 305                 case Pressed: // Clicked
 306                         switch (trackview.editor.current_midi_edit_mode()) {
 307                         case MidiEditSelect:
 308                                 clear_selection();
 309                                 break;
 310                         case MidiEditPencil:
 311                                 trackview.editor.snap_to(event_frame, -1);
 312                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 313                                 create_note_at(event_x, event_y, _default_note_length);
 314                         default:
 315                                 break;
 316                         }
 317                         _mouse_state = None;
 318                         return true;
 319                 case SelectRectDragging: // Select drag done
 320                         _mouse_state = None;
 321                         delete drag_rect;
 322                         drag_rect = NULL;
 323                         return true;
 324                 case AddDragging: // Add drag done
 325                         _mouse_state = None;
 326                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 327                                 create_note_at(drag_rect->property_x1(), drag_rect->property_y1(),
 328                                                 trackview.editor.pixel_to_frame(
 329                                                 drag_rect->property_x2() - drag_rect->property_x1()));
 330                         }
 331
 332                         delete drag_rect;
 333                         drag_rect = NULL;
 334                         return true;
 335                 default:
 336                         break;
 337                 }
 338
 339         default:
 340                 break;
 341         }
 342
 343         return false;
 344 }
 345
 346
 347 /** Add a note to the model, and the view, at a canvas (click) coordinate */
 348 void
 349 MidiRegionView::create_note_at(double x, double y, double dur)
 350 {
 351         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 352         MidiStreamView* const view = mtv->midi_view();
 353
 354         double note = midi_stream_view()->y_to_note(y);
 355
 356         assert(note >= 0.0);
 357         assert(note <= 127.0);
 358
 359         const nframes_t stamp = trackview.editor.pixel_to_frame (x);
 360         assert(stamp >= 0);
 361         //assert(stamp <= _region->length());
 362
 363         //const Meter& m = trackview.session().tempo_map().meter_at(stamp);
 364         //const Tempo& t = trackview.session().tempo_map().tempo_at(stamp);
 365         //double dur = m.frames_per_bar(t, trackview.session().frame_rate()) / m.beats_per_bar();
 366
 367         // Add a 1 beat long note (for now)
 368         const boost::shared_ptr<Note> new_note(new Note(0, stamp, dur, (uint8_t)note, 0x40));
 369
 370         view->update_bounds(new_note->note());
 371
 372         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 373         cmd->add(new_note);
 374         _model->apply_command(cmd);
 375
 376         //add_note(new_note);
 377 }
 378
 379
 380 void
 381 MidiRegionView::clear_events()
 382 {
 383         clear_selection();
 384
 385         MidiGhostRegion* gr;
 386         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 387                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 388                         gr->clear_events();
 389                 }
 390         }
 391
 392         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i)
 393                 delete *i;
 394
 395         _events.clear();
 396 }
 397
 398
 399 void
 400 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 401 {
 402         _model = model;
 403
 404         if (_enable_display)
 405                 redisplay_model();
 406 }
 407
 408
 409 void
 410 MidiRegionView::redisplay_model()
 411 {
 412         // Don't redisplay the model if we're currently recording and displaying that
 413         if (_active_notes)
 414                 return;
 415
 416         if (_model) {
 417
 418                 clear_events();
 419                 begin_write();
 420
 421                 _model->read_lock();
 422
 423                 for (size_t i=0; i < _model->n_notes(); ++i)
 424                         add_note(_model->note_at(i));
 425
 426                 end_write();
 427
 428                 /*for (Automatable::Controls::const_iterator i = _model->controls().begin();
 429                                 i != _model->controls().end(); ++i) {
 430
 431                         assert(i->second);
 432
 433                         boost::shared_ptr<AutomationTimeAxisView> at
 434                                 = midi_view()->automation_child(i->second->parameter());
 435                         if (!at)
 436                                 continue;
 437
 438                         Gdk::Color col = midi_stream_view()->get_region_color();
 439
 440                         boost::shared_ptr<AutomationRegionView> arv;
 441
 442                         {
 443                                 Glib::Mutex::Lock list_lock (i->second->list()->lock());
 444
 445                                 arv = boost::shared_ptr<AutomationRegionView>(
 446                                                 new AutomationRegionView(at->canvas_display,
 447                                                         *at.get(), _region, i->second->list(),
 448                                                         midi_stream_view()->get_samples_per_unit(), col));
 449                         }
 450
 451                         arv->set_duration(_region->length(), this);
 452                         arv->init(col, true);
 453
 454                         _automation_children.insert(std::make_pair(i->second->parameter(), arv));
 455                 }*/
 456
 457                 _model->read_unlock();
 458
 459         } else {
 460                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 461         }
 462 }
 463
 464
 465 MidiRegionView::~MidiRegionView ()
 466 {
 467         in_destructor = true;
 468
 469         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 470
 471         if (_active_notes)
 472                 end_write();
 473
 474         _selection.clear();
 475         clear_events();
 476         delete _note_group;
 477         delete _delta_command;
 478 }
 479
 480
 481 void
 482 MidiRegionView::region_resized (Change what_changed)
 483 {
 484         RegionView::region_resized(what_changed);
 485
 486         if (what_changed & ARDOUR::PositionChanged) {
 487
 488                 if (_enable_display)
 489                         redisplay_model();
 490
 491         } else if (what_changed & Change (StartChanged)) {
 492
 493                 //cerr << "MIDI RV START CHANGED" << endl;
 494
 495         } else if (what_changed & Change (LengthChanged)) {
 496
 497                 //cerr << "MIDI RV LENGTH CHANGED" << endl;
 498
 499         }
 500 }
 501
 502 void
 503 MidiRegionView::reset_width_dependent_items (double pixel_width)
 504 {
 505         RegionView::reset_width_dependent_items(pixel_width);
 506         assert(_pixel_width == pixel_width);
 507
 508         if (_enable_display)
 509                 redisplay_model();
 510 }
 511
 512 void
 513 MidiRegionView::set_y_position_and_height (double y, double h)
 514 {
 515         RegionView::set_y_position_and_height(y, h - 1);
 516
 517         if (_enable_display) {
 518
 519                 _model->read_lock();
 520
 521                 for (std::vector<CanvasMidiEvent*>::const_iterator i = _events.begin(); i != _events.end(); ++i) {
 522                         CanvasNote* note = dynamic_cast<CanvasNote*>(*i);
 523                         if (note && note->note()) {
 524                                 if (note->note()->note() < midi_stream_view()->lowest_note() ||
 525                                    note->note()->note() > midi_stream_view()->highest_note()) {
 526                                         if (canvas_item_visible(note)) {
 527                                                 note->hide();
 528                                         }
 529                                 }
 530                                 else {
 531                                         const double y1 = midi_stream_view()->note_to_y(note->note()->note());
 532                                         const double y2 = y1 + floor(midi_stream_view()->note_height());
 533
 534                                         if (!canvas_item_visible(note)) {
 535                                                 note->show();
 536                                         }
 537
 538                                         note->property_y1() = y1;
 539                                         note->property_y2() = y2;
 540                                 }
 541                         }
 542                 }
 543
 544                 _model->read_unlock();
 545         }
 546
 547         if (name_text) {
 548                 name_text->raise_to_top();
 549         }
 550 }
 551
 552 GhostRegion*
 553 MidiRegionView::add_ghost (TimeAxisView& tv)
 554 {
 555         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
 556         CanvasNote* note;
 557         assert(rtv);
 558
 559         double unit_position = _region->position () / samples_per_unit;
 560         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
 561         MidiGhostRegion* ghost;
 562
 563         if (mtv && mtv->midi_view()) {
 564                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group.
 565                    this is because it's nice to have midi notes on top of the note lines and
 566                    audio waveforms under it.
 567                  */
 568                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
 569         }
 570         else {
 571                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
 572         }
 573
 574         ghost->set_height ();
 575         ghost->set_duration (_region->length() / samples_per_unit);
 576         ghosts.push_back (ghost);
 577
 578         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 579                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
 580                         ghost->add_note(note);
 581                 }
 582         }
 583
 584         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
 585
 586         return ghost;
 587 }
 588
 589
 590 /** Begin tracking note state for successive calls to add_event
 591  */
 592 void
 593 MidiRegionView::begin_write()
 594 {
 595         assert(!_active_notes);
 596         _active_notes = new CanvasNote*[128];
 597         for (unsigned i=0; i < 128; ++i)
 598                 _active_notes[i] = NULL;
 599 }
 600
 601
 602 /** Destroy note state for add_event
 603  */
 604 void
 605 MidiRegionView::end_write()
 606 {
 607         delete[] _active_notes;
 608         _active_notes = NULL;
 609 }
 610
 611
 612 /** Resolve an active MIDI note (while recording).
 613  */
 614 void
 615 MidiRegionView::resolve_note(uint8_t note, double end_time)
 616 {
 617         if (midi_view()->note_mode() != Sustained)
 618                 return;
 619
 620         if (_active_notes && _active_notes[note]) {
 621                 _active_notes[note]->property_x2() = trackview.editor.frame_to_pixel((nframes_t)end_time);
 622                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
 623                 _active_notes[note] = NULL;
 624         }
 625 }
 626
 627
 628 /** Extend active notes to rightmost edge of region (if length is changed)
 629  */
 630 void
 631 MidiRegionView::extend_active_notes()
 632 {
 633         if (!_active_notes)
 634                 return;
 635
 636         for (unsigned i=0; i < 128; ++i)
 637                 if (_active_notes[i])
 638                         _active_notes[i]->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 639 }
 640
 641
 642 /** Add a MIDI note to the view (with duration).
 643  *
 644  * If in sustained mode, notes with duration 0 will be considered active
 645  * notes, and resolve_note should be called when the corresponding note off
 646  * event arrives, to properly display the note.
 647  */
 648 void
 649 MidiRegionView::add_note(const boost::shared_ptr<Note> note)
 650 {
 651         assert(note->time() >= 0);
 652         //assert(note->time() < _region->length());
 653         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
 654
 655         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 656
 657         if (midi_view()->note_mode() == Sustained) {
 658
 659                 //cerr << "MRV::add_note sustained " << note->note() << " @ " << note->time()
 660                 //      << " .. " << note->end_time() << endl;
 661
 662                 const double y1 = midi_stream_view()->note_to_y(note->note());
 663
 664                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
 665                 ev_rect->property_x1() = trackview.editor.frame_to_pixel((nframes_t)note->time());
 666                 ev_rect->property_y1() = y1;
 667                 if (note->duration() > 0)
 668                         ev_rect->property_x2() = trackview.editor.frame_to_pixel((nframes_t)(note->end_time()));
 669                 else
 670                         ev_rect->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 671                 ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
 672
 673                 ev_rect->property_fill_color_rgba() = note_fill_color(note->velocity());
 674                 ev_rect->property_outline_color_rgba() = note_outline_color(note->velocity());
 675
 676                 if (note->duration() == 0) {
 677                         _active_notes[note->note()] = ev_rect;
 678                         /* outline all but right edge */
 679                         ev_rect->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
 680                 } else {
 681                         /* outline all edges */
 682                         ev_rect->property_outline_what() = (guint32) 0xF;
 683                 }
 684
 685                 ev_rect->show();
 686                 _events.push_back(ev_rect);
 687
 688                 MidiGhostRegion* gr;
 689
 690                 for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 691                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 692                                 gr->add_note(ev_rect);
 693                         }
 694                 }
 695
 696         } else if (midi_view()->note_mode() == Percussive) {
 697
 698                 //cerr << "MRV::add_note percussive " << note->note() << " @ " << note->time()
 699                 //      << " .. " << note->end_time() << endl;
 700
 701                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
 702                 const double x = trackview.editor.frame_to_pixel((nframes_t)note->time());
 703                 const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
 704
 705                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size);
 706                 ev_diamond->move(x, y);
 707                 ev_diamond->show();
 708                 ev_diamond->property_fill_color_rgba() = note_fill_color(note->velocity());
 709                 ev_diamond->property_outline_color_rgba() = note_outline_color(note->velocity());
 710                 _events.push_back(ev_diamond);
 711
 712         }
 713 }
 714
 715 void
 716 MidiRegionView::delete_selection()
 717 {
 718         assert(_delta_command);
 719
 720         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 721                 if ((*i)->selected())
 722                         _delta_command->remove((*i)->note());
 723
 724         _selection.clear();
 725 }
 726
 727 void
 728 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasMidiEvent* ev)
 729 {
 730         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 731                 if ((*i)->selected() && (*i) != ev)
 732                         (*i)->selected(false);
 733
 734         _selection.clear();
 735 }
 736
 737 void
 738 MidiRegionView::unique_select(ArdourCanvas::CanvasMidiEvent* ev)
 739 {
 740         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 741                 if ((*i) != ev)
 742                         (*i)->selected(false);
 743
 744         _selection.clear();
 745         _selection.insert(ev);
 746
 747         if ( ! ev->selected())
 748                 ev->selected(true);
 749 }
 750
 751 void
 752 MidiRegionView::note_selected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 753 {
 754         if ( ! add)
 755                 clear_selection_except(ev);
 756
 757         _selection.insert(ev);
 758
 759         if ( ! ev->selected())
 760                 ev->selected(true);
 761 }
 762
 763
 764 void
 765 MidiRegionView::note_deselected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 766 {
 767         if ( ! add)
 768                 clear_selection_except(ev);
 769
 770         _selection.erase(ev);
 771
 772         if (ev->selected())
 773                 ev->selected(false);
 774 }
 775
 776
 777 void
 778 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
 779 {
 780         const double last_y = std::min(y1, y2);
 781         const double y      = std::max(y1, y2);
 782
 783         // FIXME: so, so, so much slower than this should be
 784
 785         if (x1 < x2) {
 786                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 787                         if ((*i)->x1() >= x1 && (*i)->x1() <= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 788                                 (*i)->selected(true);
 789                                 _selection.insert(*i);
 790                         } else {
 791                                 (*i)->selected(false);
 792                                 _selection.erase(*i);
 793                         }
 794                 }
 795         } else {
 796                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 797                         if ((*i)->x2() <= x1 && (*i)->x2() >= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 798                                 (*i)->selected(true);
 799                                 _selection.insert(*i);
 800                         } else {
 801                                 (*i)->selected(false);
 802                                 _selection.erase(*i);
 803                         }
 804                 }
 805         }
 806 }
 807
 808
 809 void
 810 MidiRegionView::move_selection(double dx, double dy)
 811 {
 812         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 813                 (*i)->item()->move(dx, dy);
 814 }
 815
 816
 817 void
 818 MidiRegionView::note_dropped(CanvasMidiEvent* ev, double dt, uint8_t dnote)
 819 {
 820         // TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
 821         if (_selection.find(ev) != _selection.end()) {
 822                 start_delta_command();
 823
 824                 for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ) {
 825                         Selection::iterator next = i;
 826                         ++next;
 827
 828                         command_remove_note(*i);
 829                         const boost::shared_ptr<Note> copy(new Note(*(*i)->note().get()));
 830
 831                         copy->set_time((*i)->note()->time() + dt);
 832                         copy->set_note((*i)->note()->note() + dnote);
 833
 834                         command_add_note(copy);
 835
 836                         _selection.erase(i);
 837                         i = next;
 838                 }
 839                 apply_command();
 840         }
 841 }
 842
 843 void
 844 MidiRegionView::begin_resizing(CanvasNote::NoteEnd note_end)
 845 {
 846         _resize_data.clear();
 847
 848         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 849                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
 850
 851                 // only insert CanvasNotes into the map
 852                 if(note) {
 853                         NoteResizeData *resize_data = new NoteResizeData();
 854                         resize_data->canvas_note = note;
 855
 856                         SimpleRect *resize_rect = new SimpleRect(*group, note->x1(), note->y1(), note->x2(), note->y2());
 857
 858                         uint fill_color = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get(), 128);
 859                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
 860
 861                         resize_rect->property_fill_color_rgba() =
 862                                 UINT_INTERPOLATE(
 863                                         note_fill_color(note->note()->velocity()),
 864                                         fill_color,
 865                                         0.85);
 866
 867                         resize_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get();
 868                         resize_data->resize_rect = resize_rect;
 869
 870                         if(note_end == CanvasNote::NOTE_ON) {
 871                                 resize_data->current_x = note->x1();
 872                         } else { // NOTE_OFF
 873                                 resize_data->current_x = note->x2();
 874                         }
 875
 876                         _resize_data.push_back(resize_data);
 877                 }
 878         }
 879 }
 880
 881 double
 882 MidiRegionView::snap_to(double x)
 883 {
 884         PublicEditor &editor = trackview.editor;
 885
 886         nframes_t frame = editor.pixel_to_frame(x);
 887         editor.snap_to(frame);
 888         return (double) editor.frame_to_pixel(frame);
 889 }
 890
 891 void
 892 MidiRegionView::update_resizing(CanvasNote::NoteEnd note_end, double dx, bool relative)
 893 {
 894
 895
 896         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
 897                 SimpleRect     *resize_rect = (*i)->resize_rect;
 898                 CanvasNote     *canvas_note = (*i)->canvas_note;
 899
 900                 if(relative) {
 901                         (*i)->current_x = (*i)->current_x + dx;
 902                 } else {
 903                         (*i)->current_x = dx;
 904                 }
 905
 906                 double current_x = (*i)->current_x;
 907
 908                 if(note_end == CanvasNote::NOTE_ON) {
 909                         resize_rect->property_x1() = snap_to(current_x);
 910                         resize_rect->property_x2() = canvas_note->x2();
 911                 } else {
 912                         resize_rect->property_x2() = snap_to(current_x);
 913                         resize_rect->property_x1() = canvas_note->x1();
 914                 }
 915         }
 916 }
 917
 918 void
 919 MidiRegionView::commit_resizing(CanvasNote::NoteEnd note_end, double event_x, bool relative)
 920 {
 921         start_delta_command();
 922
 923         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
 924                 CanvasNote *canvas_note = (*i)->canvas_note;
 925                 SimpleRect *resize_rect = (*i)->resize_rect;
 926                 double      current_x   = (*i)->current_x;
 927
 928
 929                 if(!relative) {
 930                         current_x = event_x;
 931                 }
 932
 933                 nframes_t current_frame = trackview.editor.pixel_to_frame(current_x);
 934                 trackview.editor.snap_to(current_frame);
 935
 936                 const boost::shared_ptr<Note> copy(new Note(*(canvas_note->note().get())));
 937
 938                 // resize beginning of note
 939                 if (note_end == CanvasNote::NOTE_ON && current_frame < copy->end_time()) {
 940                         command_remove_note(canvas_note);
 941                         copy->on_event().time() = current_frame;
 942                         command_add_note(copy);
 943                 }
 944                 // resize end of note
 945                 if (note_end == CanvasNote::NOTE_OFF && current_frame > copy->time()) {
 946                         command_remove_note(canvas_note);
 947                         copy->off_event().time() = current_frame;
 948                         command_add_note(copy);
 949                 }
 950
 951                 delete resize_rect;
 952                 delete (*i);
 953         }
 954
 955         _resize_data.clear();
 956         apply_command();
 957         clear_selection();
 958 }
 959
 960 void
 961 MidiRegionView::note_entered(ArdourCanvas::CanvasMidiEvent* ev)
 962 {
 963         if (ev->note() && _mouse_state == EraseTouchDragging) {
 964                 start_delta_command();
 965                 ev->selected(true);
 966                 _delta_command->remove(ev->note());
 967         } else if (_mouse_state == SelectTouchDragging) {
 968                 note_selected(ev, true);
 969         }
 970 }
 971
 972
 973 void
 974 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
 975 {
 976         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
 977         if (msrc)
 978                 display_model(msrc->model());
 979 }
 980
 981 void
 982 MidiRegionView::set_frame_color()
 983 {
 984         if (frame) {
 985                 if (_selected && should_show_selection) {
 986                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
 987                 } else {
 988                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
 989                 }
 990         }
 991 }