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