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 "utils.h"
  49 #include "midi_util.h"
  50 #include "gui_thread.h"
  51 #include "keyboard.h"
  52
  53 #include "i18n.h"
  54
  55 using namespace sigc;
  56 using namespace ARDOUR;
  57 using namespace PBD;
  58 using namespace Editing;
  59 using namespace ArdourCanvas;
  60
  61 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu,
  62                                   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         _note_group->raise_to_top();
  72 }
  73
  74 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu,
  75                                   Gdk::Color& basic_color, TimeAxisViewItem::Visibility visibility)
  76         : RegionView (parent, tv, r, spu, basic_color, visibility)
  77         , _default_note_length(0.0)
  78         , _active_notes(0)
  79         , _note_group(new ArdourCanvas::Group(*parent))
  80         , _delta_command(NULL)
  81         , _mouse_state(None)
  82         , _pressed_button(0)
  83 {
  84         _note_group->raise_to_top();
  85 }
  86
  87 void
  88 MidiRegionView::init (Gdk::Color& basic_color, bool wfd)
  89 {
  90         if (wfd)
  91                 midi_region()->midi_source(0)->load_model();
  92
  93         const Meter& m = trackview.session().tempo_map().meter_at(_region->start());
  94         const Tempo& t = trackview.session().tempo_map().tempo_at(_region->start());
  95         _default_note_length = m.frames_per_bar(t, trackview.session().frame_rate())
  96                         / m.beats_per_bar();
  97
  98         _model = midi_region()->midi_source(0)->model();
  99         _enable_display = false;
 100
 101         RegionView::init(basic_color, false);
 102
 103         compute_colors (basic_color);
 104
 105         reset_width_dependent_items ((double) _region->length() / samples_per_unit);
 106
 107         set_y_position_and_height (0, trackview.height);
 108
 109         region_muted ();
 110         region_resized (BoundsChanged);
 111         region_locked ();
 112
 113         _region->StateChanged.connect (mem_fun(*this, &MidiRegionView::region_changed));
 114
 115         set_colors ();
 116
 117         _enable_display = true;
 118
 119         if (_model) {
 120                 if (wfd) {
 121                         redisplay_model();
 122                 }
 123                 _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 124         }
 125
 126         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 127
 128 }
 129
 130 bool
 131 MidiRegionView::canvas_event(GdkEvent* ev)
 132 {
 133         static bool delete_mod = false;
 134         static Editing::MidiEditMode original_mode;
 135
 136         static double drag_start_x, drag_start_y;
 137         static double last_x, last_y;
 138         double event_x, event_y;
 139         nframes_t event_frame = 0;
 140
 141         static ArdourCanvas::SimpleRect* drag_rect = NULL;
 142
 143         if (trackview.editor.current_mouse_mode() != MouseNote)
 144                 return false;
 145
 146         // Mmmm, spaghetti
 147
 148         switch (ev->type) {
 149         case GDK_KEY_PRESS:
 150                 cerr << "REGION KEY PRESS\n";
 151                 if (ev->key.keyval == GDK_Delete && !delete_mod) {
 152                         delete_mod = true;
 153                         original_mode = trackview.editor.current_midi_edit_mode();
 154                         trackview.editor.set_midi_edit_mode(MidiEditErase);
 155                         start_remove_command();
 156                         _mouse_state = EraseDragging;
 157                 }
 158                 return true;
 159
 160         case GDK_KEY_RELEASE:
 161                 cerr << "REGION KEY RELEASE\n";
 162                 if (ev->key.keyval == GDK_Delete) {
 163                         if (_mouse_state == EraseDragging) {
 164                                 delete_selection();
 165                                 apply_command();
 166                         }
 167                         if (delete_mod) {
 168                                 trackview.editor.set_midi_edit_mode(original_mode);
 169                                 delete_mod = false;
 170                         }
 171                 }
 172                 return true;
 173
 174         case GDK_BUTTON_PRESS:
 175                 //group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK, ev->button.time);
 176                 _mouse_state = Pressed;
 177                 _pressed_button = ev->button.button;
 178                 //cerr << "PRESSED: " << press_button << endl;
 179                 return true;
 180
 181         case GDK_ENTER_NOTIFY:
 182                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 183                 Keyboard::magic_widget_grab_focus();
 184                 group->grab_focus();
 185                 break;
 186
 187         case GDK_MOTION_NOTIFY:
 188                 event_x = ev->motion.x;
 189                 event_y = ev->motion.y;
 190                 group->w2i(event_x, event_y);
 191
 192                 event_frame = trackview.editor.pixel_to_frame(event_x);
 193                 trackview.editor.snap_to(event_frame);
 194
 195                 switch (_mouse_state) {
 196                 case Pressed: // Drag start
 197
 198                         // Select drag start
 199                         if (_pressed_button == 1 && trackview.editor.current_midi_edit_mode() == MidiEditSelect) {
 200                                 cerr << "SELECT START\n";
 201                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 202                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 203                                 last_x = event_x;
 204                                 last_y = event_y;
 205                                 drag_start_x = event_x;
 206                                 drag_start_y = event_y;
 207
 208                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 209                                 drag_rect->property_x1() = event_x;
 210                                 drag_rect->property_y1() = event_y;
 211                                 drag_rect->property_x2() = event_x;
 212                                 drag_rect->property_y2() = event_y;
 213                                 drag_rect->property_outline_what() = 0xFF;
 214                                 drag_rect->property_outline_color_rgba()
 215                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 216                                 drag_rect->property_fill_color_rgba()
 217                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 218
 219                                 _mouse_state = SelectDragging;
 220                                 return true;
 221
 222                         // Add note drag start
 223                         } else if (trackview.editor.current_midi_edit_mode() == MidiEditPencil) {
 224                                 cerr << "PENCIL START\n";
 225                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 226                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 227                                 last_x = event_x;
 228                                 last_y = event_y;
 229                                 drag_start_x = event_x;
 230                                 drag_start_y = event_y;
 231
 232                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 233                                 drag_rect->property_x1() = trackview.editor.frame_to_pixel(event_frame);
 234
 235                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(midi_stream_view()->y_to_note(event_y));
 236                                 drag_rect->property_x2() = event_x;
 237                                 drag_rect->property_y2() = drag_rect->property_y1() + floor(midi_stream_view()->note_height());
 238                                 drag_rect->property_outline_what() = 0xFF;
 239                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 240
 241                                 drag_rect->property_fill_color_rgba() = 0xFFFFFF66;
 242
 243                                 _mouse_state = AddDragging;
 244                                 return true;
 245
 246                         // Eraser drag start
 247                         } else if (trackview.editor.current_midi_edit_mode() == MidiEditErase) {
 248                                 cerr << "ERASE DRAGGING\n";
 249                                 _mouse_state = EraseDragging;
 250                                 return false; // ?
 251                         }
 252
 253                         break;
 254
 255                 case SelectDragging: // Select drag motion
 256                 case AddDragging: // Add note drag motion
 257                         if (ev->motion.is_hint) {
 258                                 int t_x;
 259                                 int t_y;
 260                                 GdkModifierType state;
 261                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 262                                 event_x = t_x;
 263                                 event_y = t_y;
 264                         }
 265
 266                         if (_mouse_state == AddDragging)
 267                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 268
 269                         if (drag_rect)
 270                                 if (event_x > drag_start_x)
 271                                         drag_rect->property_x2() = event_x;
 272                                 else
 273                                         drag_rect->property_x1() = event_x;
 274
 275                         if (drag_rect && _mouse_state == SelectDragging) {
 276                                 if (event_y > drag_start_y)
 277                                         drag_rect->property_y2() = event_y;
 278                                 else
 279                                         drag_rect->property_y1() = event_y;
 280
 281                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 282                         }
 283
 284                         last_x = event_x;
 285                         last_y = event_y;
 286
 287                 case EraseDragging:
 288                         return true;
 289
 290                 default:
 291                         _mouse_state = None;
 292                         break;
 293                 }
 294                 break;
 295
 296         case GDK_BUTTON_RELEASE:
 297                 event_x = ev->motion.x;
 298                 event_y = ev->motion.y;
 299                 group->w2i(event_x, event_y);
 300                 group->ungrab(ev->button.time);
 301                 event_frame = trackview.editor.pixel_to_frame(event_x);
 302
 303                 switch (_mouse_state) {
 304                 case Pressed: // Clicked
 305                         switch (trackview.editor.current_midi_edit_mode()) {
 306                         case MidiEditSelect:
 307                                 clear_selection();
 308                                 break;
 309                         case MidiEditPencil:
 310                                 trackview.editor.snap_to(event_frame);
 311                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 312                                 create_note_at(event_x, event_y, _default_note_length);
 313                         default:
 314                                 break;
 315                         }
 316                         _mouse_state = None;
 317                         return true;
 318                 case SelectDragging: // Select drag done
 319                         _mouse_state = None;
 320                         delete drag_rect;
 321                         drag_rect = NULL;
 322                         return true;
 323                 case AddDragging: // Add drag done
 324                         _mouse_state = None;
 325                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 326                                 create_note_at(drag_rect->property_x1(), drag_rect->property_y1(),
 327                                                 trackview.editor.pixel_to_frame(
 328                                                 drag_rect->property_x2() - drag_rect->property_x1()));
 329                         }
 330
 331                         delete drag_rect;
 332                         drag_rect = NULL;
 333                         return true;
 334                 default:
 335                         break;
 336                 }
 337
 338         default:
 339                 break;
 340         }
 341
 342         return false;
 343 }
 344
 345
 346 /** Add a note to the model, and the view, at a canvas (click) coordinate */
 347 void
 348 MidiRegionView::create_note_at(double x, double y, double dur)
 349 {
 350         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 351         MidiStreamView* const view = mtv->midi_view();
 352
 353         double note = midi_stream_view()->y_to_note(y);
 354
 355         assert(note >= 0.0);
 356         assert(note <= 127.0);
 357
 358         const nframes_t stamp = trackview.editor.pixel_to_frame (x);
 359         assert(stamp >= 0);
 360         //assert(stamp <= _region->length());
 361
 362         //const Meter& m = trackview.session().tempo_map().meter_at(stamp);
 363         //const Tempo& t = trackview.session().tempo_map().tempo_at(stamp);
 364         //double dur = m.frames_per_bar(t, trackview.session().frame_rate()) / m.beats_per_bar();
 365
 366         // Add a 1 beat long note (for now)
 367         const MidiModel::Note new_note(stamp, dur, (uint8_t)note, 0x40);
 368
 369         view->update_bounds(new_note.note());
 370
 371         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 372         cmd->add(new_note);
 373         _model->apply_command(cmd);
 374
 375         //add_note(new_note);
 376 }
 377
 378
 379 void
 380 MidiRegionView::clear_events()
 381 {
 382         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i)
 383                 delete *i;
 384
 385         _events.clear();
 386 }
 387
 388
 389 void
 390 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 391 {
 392         _model = model;
 393
 394         if (_enable_display)
 395                 redisplay_model();
 396 }
 397
 398
 399 void
 400 MidiRegionView::redisplay_model()
 401 {
 402         clear_events();
 403
 404         if (_model) {
 405                 begin_write();
 406
 407                 for (size_t i=0; i < _model->n_notes(); ++i)
 408                         add_note(_model->note_at(i));
 409
 410                 end_write();
 411         } else {
 412                 warning << "MidiRegionView::redisplay_model called without a model" << endmsg;
 413         }
 414 }
 415
 416
 417 MidiRegionView::~MidiRegionView ()
 418 {
 419         in_destructor = true;
 420         end_write();
 421
 422         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 423 }
 424
 425
 426 void
 427 MidiRegionView::region_resized (Change what_changed)
 428 {
 429         RegionView::region_resized(what_changed);
 430
 431         if (what_changed & ARDOUR::PositionChanged) {
 432
 433                 if (_enable_display)
 434                         redisplay_model();
 435
 436         } else if (what_changed & Change (StartChanged)) {
 437
 438                 //cerr << "MIDI RV START CHANGED" << endl;
 439
 440         } else if (what_changed & Change (LengthChanged)) {
 441
 442                 //cerr << "MIDI RV LENGTH CHANGED" << endl;
 443
 444         }
 445 }
 446
 447 void
 448 MidiRegionView::reset_width_dependent_items (double pixel_width)
 449 {
 450         RegionView::reset_width_dependent_items(pixel_width);
 451         assert(_pixel_width == pixel_width);
 452
 453         if (_enable_display)
 454                 redisplay_model();
 455 }
 456
 457 void
 458 MidiRegionView::set_y_position_and_height (double y, double h)
 459 {
 460         RegionView::set_y_position_and_height(y, h - 1);
 461
 462         if (_enable_display)
 463                 redisplay_model();
 464
 465         if (name_text) {
 466                 name_text->raise_to_top();
 467         }
 468 }
 469
 470 GhostRegion*
 471 MidiRegionView::add_ghost (AutomationTimeAxisView& atv)
 472 {
 473         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
 474         assert(rtv);
 475
 476         double unit_position = _region->position () / samples_per_unit;
 477         GhostRegion* ghost = new GhostRegion (atv, unit_position);
 478
 479         ghost->set_height ();
 480         ghost->set_duration (_region->length() / samples_per_unit);
 481         ghosts.push_back (ghost);
 482
 483         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
 484
 485         return ghost;
 486 }
 487
 488
 489 /** Begin tracking note state for successive calls to add_event
 490  */
 491 void
 492 MidiRegionView::begin_write()
 493 {
 494         _active_notes = new CanvasNote*[128];
 495         for (unsigned i=0; i < 128; ++i)
 496                 _active_notes[i] = NULL;
 497 }
 498
 499
 500 /** Destroy note state for add_event
 501  */
 502 void
 503 MidiRegionView::end_write()
 504 {
 505         delete[] _active_notes;
 506         _active_notes = NULL;
 507 }
 508
 509
 510 /** Add a MIDI event.
 511  *
 512  * This is used while recording, and handles displaying still-unresolved notes.
 513  * Displaying an existing model is simpler, and done with add_note.
 514  */
 515 void
 516 MidiRegionView::add_event (const MidiEvent& ev)
 517 {
 518         /*printf("Event, time = %f, size = %zu, data = ", ev.time, ev.size);
 519         for (size_t i=0; i < ev.size; ++i) {
 520                 printf("%X ", ev.buffer[i]);
 521         }
 522         printf("\n\n");*/
 523
 524         //ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 525         ArdourCanvas::Group* const group = _note_group;
 526
 527         if (midi_view()->note_mode() == Sustained) {
 528                 if ((ev.buffer()[0] & 0xF0) == MIDI_CMD_NOTE_ON) {
 529                         const Byte& note = ev.buffer()[1];
 530                         const double y1 = midi_stream_view()->note_to_y(note);
 531
 532                         CanvasNote* ev_rect = new CanvasNote(*this, *group);
 533                         ev_rect->property_x1() = trackview.editor.frame_to_pixel (
 534                                         (nframes_t)ev.time());
 535                         ev_rect->property_y1() = y1;
 536                         ev_rect->property_x2() = trackview.editor.frame_to_pixel (
 537                                         _region->length());
 538                         ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
 539                         ev_rect->property_fill_color_rgba() = note_fill_color(ev.velocity());
 540                         ev_rect->property_outline_color_rgba() = note_outline_color(ev.velocity());
 541                         /* outline all but right edge */
 542                         ev_rect->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
 543
 544                         ev_rect->raise_to_top();
 545
 546                         _events.push_back(ev_rect);
 547                         if (_active_notes)
 548                                 _active_notes[note] = ev_rect;
 549
 550                 } else if ((ev.buffer()[0] & 0xF0) == MIDI_CMD_NOTE_OFF) {
 551                         const Byte& note = ev.buffer()[1];
 552                         if (_active_notes && _active_notes[note]) {
 553                                 _active_notes[note]->property_x2() = trackview.editor.frame_to_pixel((nframes_t)ev.time());
 554                                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
 555                                 _active_notes[note] = NULL;
 556                         }
 557                 }
 558
 559         } else if (midi_view()->note_mode() == Percussive) {
 560                 const Byte& note = ev.buffer()[1];
 561                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
 562                 const double x = trackview.editor.frame_to_pixel((nframes_t)ev.time());
 563                 const double y = midi_stream_view()->note_to_y(note) + ((diamond_size-2) / 4.0);
 564
 565                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size);
 566                 ev_diamond->move(x, y);
 567                 ev_diamond->show();
 568                 ev_diamond->property_fill_color_rgba() = note_fill_color(ev.velocity());
 569                 ev_diamond->property_outline_color_rgba() = note_outline_color(ev.velocity());
 570
 571                 _events.push_back(ev_diamond);
 572         }
 573 }
 574
 575
 576 /** Extend active notes to rightmost edge of region (if length is changed)
 577  */
 578 void
 579 MidiRegionView::extend_active_notes()
 580 {
 581         if (!_active_notes)
 582                 return;
 583
 584         for (unsigned i=0; i < 128; ++i)
 585                 if (_active_notes[i])
 586                         _active_notes[i]->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 587 }
 588
 589
 590 /** Add a MIDI note to the view (with duration).
 591  *
 592  * This does no 'realtime' note resolution, notes from a MidiModel have a
 593  * duration so they can be drawn in full immediately.
 594  */
 595 void
 596 MidiRegionView::add_note (const MidiModel::Note& note)
 597 {
 598         assert(note.time() >= 0);
 599         //assert(note.time() < _region->length());
 600
 601         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 602
 603         if (midi_view()->note_mode() == Sustained) {
 604                 const double y1 = midi_stream_view()->note_to_y(note.note());
 605
 606                 CanvasNote* ev_rect = new CanvasNote(*this, *group, &note);
 607                 ev_rect->property_x1() = trackview.editor.frame_to_pixel((nframes_t)note.time());
 608                 ev_rect->property_y1() = y1;
 609                 ev_rect->property_x2() = trackview.editor.frame_to_pixel((nframes_t)(note.end_time()));
 610                 ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
 611
 612                 ev_rect->property_fill_color_rgba() = note_fill_color(note.velocity());
 613                 ev_rect->property_outline_color_rgba() = note_outline_color(note.velocity());
 614                 ev_rect->property_outline_what() = (guint32) 0xF; // all edges
 615
 616                 ev_rect->show();
 617                 _events.push_back(ev_rect);
 618
 619         } else if (midi_view()->note_mode() == Percussive) {
 620                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
 621                 const double x = trackview.editor.frame_to_pixel((nframes_t)note.time());
 622                 const double y = midi_stream_view()->note_to_y(note.note()) + ((diamond_size-2) / 4.0);
 623
 624                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size);
 625                 ev_diamond->move(x, y);
 626                 ev_diamond->show();
 627                 ev_diamond->property_fill_color_rgba() = note_fill_color(note.velocity());
 628                 ev_diamond->property_outline_color_rgba() = note_outline_color(note.velocity());
 629                 _events.push_back(ev_diamond);
 630         }
 631 }
 632
 633 void
 634 MidiRegionView::delete_selection()
 635 {
 636         assert(_delta_command);
 637
 638         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 639                 if ((*i)->selected())
 640                         _delta_command->remove(*(*i)->note());
 641
 642         _selection.clear();
 643 }
 644
 645 void
 646 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasMidiEvent* ev)
 647 {
 648         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 649                 if ((*i)->selected() && (*i) != ev)
 650                         (*i)->selected(false);
 651
 652         _selection.clear();
 653 }
 654
 655 void
 656 MidiRegionView::unique_select(ArdourCanvas::CanvasMidiEvent* ev)
 657 {
 658         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 659                 if ((*i) != ev)
 660                         (*i)->selected(false);
 661
 662         _selection.clear();
 663         _selection.insert(ev);
 664         ev->selected(true);
 665 }
 666
 667 void
 668 MidiRegionView::note_selected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 669 {
 670         if ( ! add)
 671                 clear_selection_except(ev);
 672
 673         _selection.insert(ev);
 674         ev->selected(true);
 675 }
 676
 677
 678 void
 679 MidiRegionView::note_deselected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 680 {
 681         if ( ! add)
 682                 clear_selection_except(ev);
 683
 684         _selection.erase(ev);
 685         ev->selected(false);
 686 }
 687
 688
 689 void
 690 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
 691 {
 692         const double last_y = std::min(y1, y2);
 693         const double y      = std::max(y1, y2);
 694
 695         // FIXME: so, so, so much slower than this should be
 696
 697         if (x1 < x2) {
 698                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 699                         if ((*i)->x1() >= x1 && (*i)->x1() <= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 700                                 (*i)->selected(true);
 701                                 _selection.insert(*i);
 702                         } else {
 703                                 (*i)->selected(false);
 704                                 _selection.erase(*i);
 705                         }
 706                 }
 707         } else {
 708                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 709                         if ((*i)->x2() <= x1 && (*i)->x2() >= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 710                                 (*i)->selected(true);
 711                                 _selection.insert(*i);
 712                         } else {
 713                                 (*i)->selected(false);
 714                                 _selection.erase(*i);
 715                         }
 716                 }
 717         }
 718 }
 719
 720
 721 void
 722 MidiRegionView::move_selection(double dx, double dy)
 723 {
 724         cerr << "MOVE SELECTION: " << dx << ", " << dy << endl;
 725         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 726                 (*i)->item()->move(dx, dy);
 727 }
 728
 729 void
 730 MidiRegionView::note_dropped(CanvasMidiEvent* ev, double dt, uint8_t dnote)
 731 {
 732         // TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
 733         if (_selection.find(ev) != _selection.end()) {
 734                 start_delta_command();
 735
 736                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 737                         command_remove_note(*i);
 738                         MidiModel::Note copy(*(*i)->note());
 739
 740                         copy.set_time((*i)->note()->time() + dt);
 741                         copy.set_note((*i)->note()->note() + dnote);
 742
 743                         command_add_note(copy);
 744                 }
 745                 apply_command();
 746         }
 747 }
 748