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_model.h>
  36
  37 #include "streamview.h"
  38 #include "midi_region_view.h"
  39 #include "midi_streamview.h"
  40 #include "midi_time_axis.h"
  41 #include "simpleline.h"
  42 #include "canvas-hit.h"
  43 #include "public_editor.h"
  44 #include "ghostregion.h"
  45 #include "midi_time_axis.h"
  46 #include "automation_time_axis.h"
  47 #include "automation_region_view.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, Gdk::Color& basic_color)
  62         : RegionView (parent, tv, r, spu, basic_color)
  63         , _default_note_length(0.0)
  64         , _active_notes(0)
  65         , _note_group(new ArdourCanvas::Group(*parent))
  66         , _delta_command(NULL)
  67         , _mouse_state(None)
  68         , _pressed_button(0)
  69 {
  70         group->lower_to_bottom();
  71         _note_group->raise_to_top();
  72
  73         frame->property_fill_color_rgba() = 0xff000033;
  74 }
  75
  76 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color, TimeAxisViewItem::Visibility visibility)
  77         : RegionView (parent, tv, r, spu, basic_color, visibility)
  78         , _default_note_length(0.0)
  79         , _active_notes(0)
  80         , _note_group(new ArdourCanvas::Group(*parent))
  81         , _delta_command(NULL)
  82         , _mouse_state(None)
  83         , _pressed_button(0)
  84 {
  85         _note_group->raise_to_top();
  86 }
  87
  88 void
  89 MidiRegionView::init (Gdk::Color& basic_color, bool wfd)
  90 {
  91         if (wfd)
  92                 midi_region()->midi_source(0)->load_model();
  93
  94         const Meter& m = trackview.session().tempo_map().meter_at(_region->position());
  95         const Tempo& t = trackview.session().tempo_map().tempo_at(_region->position());
  96         _default_note_length = m.frames_per_bar(t, trackview.session().frame_rate())
  97                         / m.beats_per_bar();
  98
  99         _model = midi_region()->midi_source(0)->model();
 100         _enable_display = false;
 101
 102         RegionView::init(basic_color, false);
 103
 104         compute_colors (basic_color);
 105
 106         reset_width_dependent_items ((double) _region->length() / samples_per_unit);
 107
 108         set_y_position_and_height (0, trackview.height);
 109
 110         region_muted ();
 111         region_resized (BoundsChanged);
 112         region_locked ();
 113
 114         _region->StateChanged.connect (mem_fun(*this, &MidiRegionView::region_changed));
 115
 116         set_colors ();
 117
 118         _enable_display = true;
 119
 120         if (_model) {
 121                 if (wfd) {
 122                         redisplay_model();
 123                 }
 124                 _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 125         }
 126
 127         midi_region()->midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegionView::switch_source));
 128
 129         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 130
 131 }
 132
 133 bool
 134 MidiRegionView::canvas_event(GdkEvent* ev)
 135 {
 136         static bool delete_mod = false;
 137         static Editing::MidiEditMode original_mode;
 138
 139         static double drag_start_x, drag_start_y;
 140         static double last_x, last_y;
 141         double event_x, event_y;
 142         nframes_t event_frame = 0;
 143
 144         static ArdourCanvas::SimpleRect* drag_rect = NULL;
 145
 146         if (trackview.editor.current_mouse_mode() != MouseNote)
 147                 return false;
 148
 149         // Mmmm, spaghetti
 150
 151         switch (ev->type) {
 152         case GDK_KEY_PRESS:
 153                 if (ev->key.keyval == GDK_Delete && !delete_mod) {
 154                         delete_mod = true;
 155                         original_mode = trackview.editor.current_midi_edit_mode();
 156                         trackview.editor.set_midi_edit_mode(MidiEditErase);
 157                         start_delta_command();
 158                         _mouse_state = EraseTouchDragging;
 159                         return true;
 160                 } else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
 161                         _mouse_state = SelectTouchDragging;
 162                         return true;
 163                 } else if (ev->key.keyval == GDK_Escape) {
 164                         clear_selection();
 165                         _mouse_state = None;
 166                 }
 167                 return false;
 168
 169         case GDK_KEY_RELEASE:
 170                 if (ev->key.keyval == GDK_Delete) {
 171                         if (_mouse_state == EraseTouchDragging) {
 172                                 delete_selection();
 173                                 apply_command();
 174                         }
 175                         if (delete_mod) {
 176                                 trackview.editor.set_midi_edit_mode(original_mode);
 177                                 delete_mod = false;
 178                         }
 179                         return true;
 180                 } else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
 181                         _mouse_state = None;
 182                         return true;
 183                 }
 184                 return false;
 185
 186         case GDK_BUTTON_PRESS:
 187                 if (_mouse_state != SelectTouchDragging && _mouse_state != EraseTouchDragging)
 188                         _mouse_state = Pressed;
 189                 _pressed_button = ev->button.button;
 190                 return true;
 191
 192         case GDK_ENTER_NOTIFY:
 193                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 194                 Keyboard::magic_widget_grab_focus();
 195                 group->grab_focus();
 196                 break;
 197
 198         case GDK_MOTION_NOTIFY:
 199                 event_x = ev->motion.x;
 200                 event_y = ev->motion.y;
 201                 group->w2i(event_x, event_y);
 202
 203                 event_frame = trackview.editor.pixel_to_frame(event_x);
 204                 trackview.editor.snap_to(event_frame);
 205
 206                 switch (_mouse_state) {
 207                 case Pressed: // Drag start
 208
 209                         // Select drag start
 210                         if (_pressed_button == 1 && trackview.editor.current_midi_edit_mode() == MidiEditSelect) {
 211                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 212                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 213                                 last_x = event_x;
 214                                 last_y = event_y;
 215                                 drag_start_x = event_x;
 216                                 drag_start_y = event_y;
 217
 218                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 219                                 drag_rect->property_x1() = event_x;
 220                                 drag_rect->property_y1() = event_y;
 221                                 drag_rect->property_x2() = event_x;
 222                                 drag_rect->property_y2() = event_y;
 223                                 drag_rect->property_outline_what() = 0xFF;
 224                                 drag_rect->property_outline_color_rgba()
 225                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 226                                 drag_rect->property_fill_color_rgba()
 227                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 228
 229                                 _mouse_state = SelectRectDragging;
 230                                 return true;
 231
 232                         // Add note drag start
 233                         } else if (trackview.editor.current_midi_edit_mode() == MidiEditPencil) {
 234                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 235                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 236                                 last_x = event_x;
 237                                 last_y = event_y;
 238                                 drag_start_x = event_x;
 239                                 drag_start_y = event_y;
 240
 241                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 242                                 drag_rect->property_x1() = trackview.editor.frame_to_pixel(event_frame);
 243
 244                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(midi_stream_view()->y_to_note(event_y));
 245                                 drag_rect->property_x2() = event_x;
 246                                 drag_rect->property_y2() = drag_rect->property_y1() + floor(midi_stream_view()->note_height());
 247                                 drag_rect->property_outline_what() = 0xFF;
 248                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 249
 250                                 drag_rect->property_fill_color_rgba() = 0xFFFFFF66;
 251
 252                                 _mouse_state = AddDragging;
 253                                 return true;
 254                         }
 255
 256                         return false;
 257
 258                 case SelectRectDragging: // Select drag motion
 259                 case AddDragging: // Add note drag motion
 260                         if (ev->motion.is_hint) {
 261                                 int t_x;
 262                                 int t_y;
 263                                 GdkModifierType state;
 264                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 265                                 event_x = t_x;
 266                                 event_y = t_y;
 267                         }
 268
 269                         if (_mouse_state == AddDragging)
 270                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 271
 272                         if (drag_rect)
 273                                 if (event_x > drag_start_x)
 274                                         drag_rect->property_x2() = event_x;
 275                                 else
 276                                         drag_rect->property_x1() = event_x;
 277
 278                         if (drag_rect && _mouse_state == SelectRectDragging) {
 279                                 if (event_y > drag_start_y)
 280                                         drag_rect->property_y2() = event_y;
 281                                 else
 282                                         drag_rect->property_y1() = event_y;
 283
 284                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 285                         }
 286
 287                         last_x = event_x;
 288                         last_y = event_y;
 289
 290                 case EraseTouchDragging:
 291                 case SelectTouchDragging:
 292                         return false;
 293
 294                 default:
 295                         break;
 296                 }
 297                 break;
 298
 299         case GDK_BUTTON_RELEASE:
 300                 event_x = ev->motion.x;
 301                 event_y = ev->motion.y;
 302                 group->w2i(event_x, event_y);
 303                 group->ungrab(ev->button.time);
 304                 event_frame = trackview.editor.pixel_to_frame(event_x);
 305
 306                 switch (_mouse_state) {
 307                 case Pressed: // Clicked
 308                         switch (trackview.editor.current_midi_edit_mode()) {
 309                         case MidiEditSelect:
 310                         case MidiEditResize:
 311                                 clear_selection();
 312                                 break;
 313                         case MidiEditPencil:
 314                                 trackview.editor.snap_to(event_frame, -1);
 315                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 316                                 create_note_at(event_x, event_y, _default_note_length);
 317                         default:
 318                                 break;
 319                         }
 320                         _mouse_state = None;
 321                         return true;
 322                 case SelectRectDragging: // Select drag done
 323                         _mouse_state = None;
 324                         delete drag_rect;
 325                         drag_rect = NULL;
 326                         return true;
 327                 case AddDragging: // Add drag done
 328                         _mouse_state = None;
 329                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 330                                 create_note_at(drag_rect->property_x1(), drag_rect->property_y1(),
 331                                                 trackview.editor.pixel_to_frame(
 332                                                 drag_rect->property_x2() - drag_rect->property_x1()));
 333                         }
 334
 335                         delete drag_rect;
 336                         drag_rect = NULL;
 337                         return true;
 338                 default:
 339                         break;
 340                 }
 341
 342         default:
 343                 break;
 344         }
 345
 346         return false;
 347 }
 348
 349
 350 /** Add a note to the model, and the view, at a canvas (click) coordinate */
 351 void
 352 MidiRegionView::create_note_at(double x, double y, double dur)
 353 {
 354         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 355         MidiStreamView* const view = mtv->midi_view();
 356
 357         double note = midi_stream_view()->y_to_note(y);
 358
 359         assert(note >= 0.0);
 360         assert(note <= 127.0);
 361
 362         const nframes_t stamp = trackview.editor.pixel_to_frame (x);
 363         assert(stamp >= 0);
 364         //assert(stamp <= _region->length());
 365
 366         //const Meter& m = trackview.session().tempo_map().meter_at(stamp);
 367         //const Tempo& t = trackview.session().tempo_map().tempo_at(stamp);
 368         //double dur = m.frames_per_bar(t, trackview.session().frame_rate()) / m.beats_per_bar();
 369
 370         // Add a 1 beat long note (for now)
 371         const boost::shared_ptr<Note> new_note(new Note(0, stamp, dur, (uint8_t)note, 0x40));
 372
 373         view->update_bounds(new_note->note());
 374
 375         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 376         cmd->add(new_note);
 377         _model->apply_command(cmd);
 378
 379         //add_note(new_note);
 380 }
 381
 382
 383 void
 384 MidiRegionView::clear_events()
 385 {
 386         clear_selection();
 387
 388         MidiGhostRegion* gr;
 389         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 390                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 391                         gr->clear_events();
 392                 }
 393         }
 394
 395         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i)
 396                 delete *i;
 397
 398         _events.clear();
 399 }
 400
 401
 402 void
 403 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 404 {
 405         _model = model;
 406
 407         if (_enable_display)
 408                 redisplay_model();
 409 }
 410
 411
 412 void
 413 MidiRegionView::redisplay_model()
 414 {
 415         // Don't redisplay the model if we're currently recording and displaying that
 416         if (_active_notes)
 417                 return;
 418
 419         if (_model) {
 420
 421                 clear_events();
 422                 begin_write();
 423
 424                 _model->read_lock();
 425
 426                 /*
 427                 MidiModel::Notes notes = _model->notes();
 428                 cerr << endl << "Model contains " << notes.size() << " Notes:" << endl;
 429                 for(MidiModel::Notes::iterator i = notes.begin(); i != notes.end(); ++i) {
 430                         Note note = *(*i).get();
 431                         cerr << "MODEL: Note time: " << note.time() << " duration: " << note.duration()
 432                              << "   end-time: " << note.end_time()
 433                              << "   velocity: " << int(note.velocity())
 434                              //<< " Note-on: " << note.on_event().
 435                              //<< " Note-off: " << note.off_event()
 436                              << endl;
 437                 }*/
 438
 439                 for (size_t i=0; i < _model->n_notes(); ++i) {
 440                         add_note(_model->note_at(i));
 441                 }
 442
 443                 end_write();
 444
 445                 /*for (Automatable::Controls::const_iterator i = _model->controls().begin();
 446                                 i != _model->controls().end(); ++i) {
 447
 448                         assert(i->second);
 449
 450                         boost::shared_ptr<AutomationTimeAxisView> at
 451                                 = midi_view()->automation_child(i->second->parameter());
 452                         if (!at)
 453                                 continue;
 454
 455                         Gdk::Color col = midi_stream_view()->get_region_color();
 456
 457                         boost::shared_ptr<AutomationRegionView> arv;
 458
 459                         {
 460                                 Glib::Mutex::Lock list_lock (i->second->list()->lock());
 461
 462                                 arv = boost::shared_ptr<AutomationRegionView>(
 463                                                 new AutomationRegionView(at->canvas_display,
 464                                                         *at.get(), _region, i->second->list(),
 465                                                         midi_stream_view()->get_samples_per_unit(), col));
 466                         }
 467
 468                         arv->set_duration(_region->length(), this);
 469                         arv->init(col, true);
 470
 471                         _automation_children.insert(std::make_pair(i->second->parameter(), arv));
 472                 }*/
 473
 474                 _model->read_unlock();
 475
 476         } else {
 477                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 478         }
 479 }
 480
 481
 482 MidiRegionView::~MidiRegionView ()
 483 {
 484         in_destructor = true;
 485
 486         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 487
 488         if (_active_notes)
 489                 end_write();
 490
 491         _selection.clear();
 492         clear_events();
 493         delete _note_group;
 494         delete _delta_command;
 495 }
 496
 497
 498 void
 499 MidiRegionView::region_resized (Change what_changed)
 500 {
 501         RegionView::region_resized(what_changed);
 502
 503         if (what_changed & ARDOUR::PositionChanged) {
 504
 505                 if (_enable_display)
 506                         redisplay_model();
 507
 508         } else if (what_changed & Change (StartChanged)) {
 509
 510                 //cerr << "MIDI RV START CHANGED" << endl;
 511
 512         } else if (what_changed & Change (LengthChanged)) {
 513
 514                 //cerr << "MIDI RV LENGTH CHANGED" << endl;
 515
 516         }
 517 }
 518
 519 void
 520 MidiRegionView::reset_width_dependent_items (double pixel_width)
 521 {
 522         RegionView::reset_width_dependent_items(pixel_width);
 523         assert(_pixel_width == pixel_width);
 524
 525         if (_enable_display)
 526                 redisplay_model();
 527 }
 528
 529 void
 530 MidiRegionView::set_y_position_and_height (double y, double h)
 531 {
 532         RegionView::set_y_position_and_height(y, h - 1);
 533
 534         if (_enable_display) {
 535
 536                 _model->read_lock();
 537
 538                 for (std::vector<CanvasMidiEvent*>::const_iterator i = _events.begin(); i != _events.end(); ++i) {
 539                         CanvasNote* note = dynamic_cast<CanvasNote*>(*i);
 540                         if (note && note->note()) {
 541                                 if (note->note()->note() < midi_stream_view()->lowest_note() ||
 542                                    note->note()->note() > midi_stream_view()->highest_note()) {
 543                                         if (canvas_item_visible(note)) {
 544                                                 note->hide();
 545                                         }
 546                                 }
 547                                 else {
 548                                         const double y1 = midi_stream_view()->note_to_y(note->note()->note());
 549                                         const double y2 = y1 + floor(midi_stream_view()->note_height());
 550
 551                                         if (!canvas_item_visible(note)) {
 552                                                 note->show();
 553                                         }
 554
 555                                         note->hide_velocity();
 556                                         note->property_y1() = y1;
 557                                         note->property_y2() = y2;
 558                                         if(note->selected()) {
 559                                                 note->show_velocity();
 560                                 }
 561                         }
 562                 }
 563                 }
 564
 565                 _model->read_unlock();
 566         }
 567
 568         if (name_text) {
 569                 name_text->raise_to_top();
 570         }
 571 }
 572
 573 GhostRegion*
 574 MidiRegionView::add_ghost (TimeAxisView& tv)
 575 {
 576         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
 577         CanvasNote* note;
 578         assert(rtv);
 579
 580         double unit_position = _region->position () / samples_per_unit;
 581         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
 582         MidiGhostRegion* ghost;
 583
 584         if (mtv && mtv->midi_view()) {
 585                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group.
 586                    this is because it's nice to have midi notes on top of the note lines and
 587                    audio waveforms under it.
 588                  */
 589                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
 590         }
 591         else {
 592                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
 593         }
 594
 595         ghost->set_height ();
 596         ghost->set_duration (_region->length() / samples_per_unit);
 597         ghosts.push_back (ghost);
 598
 599         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 600                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
 601                         ghost->add_note(note);
 602                 }
 603         }
 604
 605         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
 606
 607         return ghost;
 608 }
 609
 610
 611 /** Begin tracking note state for successive calls to add_event
 612  */
 613 void
 614 MidiRegionView::begin_write()
 615 {
 616         assert(!_active_notes);
 617         _active_notes = new CanvasNote*[128];
 618         for (unsigned i=0; i < 128; ++i)
 619                 _active_notes[i] = NULL;
 620 }
 621
 622
 623 /** Destroy note state for add_event
 624  */
 625 void
 626 MidiRegionView::end_write()
 627 {
 628         delete[] _active_notes;
 629         _active_notes = NULL;
 630         _marked_for_selection.clear();
 631 }
 632
 633
 634 /** Resolve an active MIDI note (while recording).
 635  */
 636 void
 637 MidiRegionView::resolve_note(uint8_t note, double end_time)
 638 {
 639         if (midi_view()->note_mode() != Sustained)
 640                 return;
 641
 642         if (_active_notes && _active_notes[note]) {
 643                 _active_notes[note]->property_x2() = trackview.editor.frame_to_pixel((nframes_t)end_time);
 644                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
 645                 _active_notes[note] = NULL;
 646         }
 647 }
 648
 649
 650 /** Extend active notes to rightmost edge of region (if length is changed)
 651  */
 652 void
 653 MidiRegionView::extend_active_notes()
 654 {
 655         if (!_active_notes)
 656                 return;
 657
 658         for (unsigned i=0; i < 128; ++i)
 659                 if (_active_notes[i])
 660                         _active_notes[i]->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 661 }
 662
 663
 664 /** Add a MIDI note to the view (with duration).
 665  *
 666  * If in sustained mode, notes with duration 0 will be considered active
 667  * notes, and resolve_note should be called when the corresponding note off
 668  * event arrives, to properly display the note.
 669  */
 670 void
 671 MidiRegionView::add_note(const boost::shared_ptr<Note> note)
 672 {
 673         assert(note->time() >= 0);
 674         //assert(note->time() < _region->length());
 675         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
 676
 677         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 678
 679         CanvasMidiEvent *event = 0;
 680
 681         if (midi_view()->note_mode() == Sustained) {
 682
 683                 //cerr << "MRV::add_note sustained " << note->note() << " @ " << note->time()
 684                 //      << " .. " << note->end_time() << endl;
 685
 686                 const double y1 = midi_stream_view()->note_to_y(note->note());
 687
 688                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
 689                 ev_rect->property_x1() = trackview.editor.frame_to_pixel((nframes_t)note->time());
 690                 ev_rect->property_y1() = y1;
 691                 if (note->duration() > 0)
 692                         ev_rect->property_x2() = trackview.editor.frame_to_pixel((nframes_t)(note->end_time()));
 693                 else
 694                         ev_rect->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 695                 ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
 696
 697                 ev_rect->property_fill_color_rgba() = note_fill_color(note->velocity());
 698                 ev_rect->property_outline_color_rgba() = note_outline_color(note->velocity());
 699
 700                 if (note->duration() == 0) {
 701                         _active_notes[note->note()] = ev_rect;
 702                         /* outline all but right edge */
 703                         ev_rect->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
 704                 } else {
 705                         /* outline all edges */
 706                         ev_rect->property_outline_what() = (guint32) 0xF;
 707                 }
 708
 709                 ev_rect->show();
 710                 _events.push_back(ev_rect);
 711                 event = ev_rect;
 712
 713                 MidiGhostRegion* gr;
 714
 715                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 716                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 717                                 gr->add_note(ev_rect);
 718                         }
 719                 }
 720
 721         } else if (midi_view()->note_mode() == Percussive) {
 722
 723                 //cerr << "MRV::add_note percussive " << note->note() << " @ " << note->time()
 724                 //      << " .. " << note->end_time() << endl;
 725
 726                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
 727                 const double x = trackview.editor.frame_to_pixel((nframes_t)note->time());
 728                 const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
 729
 730                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size);
 731                 ev_diamond->move(x, y);
 732                 ev_diamond->show();
 733                 ev_diamond->property_fill_color_rgba() = note_fill_color(note->velocity());
 734                 ev_diamond->property_outline_color_rgba() = note_outline_color(note->velocity());
 735                 _events.push_back(ev_diamond);
 736                 event = ev_diamond;
 737         } else {
 738                 event = 0;
 739         }
 740
 741         if(event) {
 742                 Note *note = event->note().get();
 743
 744                 if(_marked_for_selection.find(note) != _marked_for_selection.end()) {
 745                         note_selected(event, true);
 746         }
 747 }
 748 }
 749
 750 void
 751 MidiRegionView::delete_selection()
 752 {
 753         assert(_delta_command);
 754
 755         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 756                 if ((*i)->selected())
 757                         _delta_command->remove((*i)->note());
 758
 759         _selection.clear();
 760 }
 761
 762 void
 763 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasMidiEvent* ev)
 764 {
 765         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 766                 if ((*i)->selected() && (*i) != ev)
 767                         (*i)->selected(false);
 768
 769         _selection.clear();
 770 }
 771
 772 void
 773 MidiRegionView::unique_select(ArdourCanvas::CanvasMidiEvent* ev)
 774 {
 775         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 776                 if ((*i) != ev)
 777                         (*i)->selected(false);
 778
 779         _selection.clear();
 780         _selection.insert(ev);
 781
 782         if ( ! ev->selected())
 783                 ev->selected(true);
 784 }
 785
 786 void
 787 MidiRegionView::note_selected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 788 {
 789         if ( ! add)
 790                 clear_selection_except(ev);
 791
 792         _selection.insert(ev);
 793
 794         if ( ! ev->selected())
 795                 ev->selected(true);
 796 }
 797
 798
 799 void
 800 MidiRegionView::note_deselected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 801 {
 802         if ( ! add)
 803                 clear_selection_except(ev);
 804
 805         _selection.erase(ev);
 806
 807         if (ev->selected())
 808                 ev->selected(false);
 809 }
 810
 811
 812 void
 813 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
 814 {
 815         const double last_y = std::min(y1, y2);
 816         const double y      = std::max(y1, y2);
 817
 818         // FIXME: so, so, so much slower than this should be
 819
 820         if (x1 < x2) {
 821                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 822                         if ((*i)->x1() >= x1 && (*i)->x1() <= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 823                                 (*i)->selected(true);
 824                                 _selection.insert(*i);
 825                         } else {
 826                                 (*i)->selected(false);
 827                                 _selection.erase(*i);
 828                         }
 829                 }
 830         } else {
 831                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 832                         if ((*i)->x2() <= x1 && (*i)->x2() >= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 833                                 (*i)->selected(true);
 834                                 _selection.insert(*i);
 835                         } else {
 836                                 (*i)->selected(false);
 837                                 _selection.erase(*i);
 838                         }
 839                 }
 840         }
 841 }
 842
 843
 844 void
 845 MidiRegionView::move_selection(double dx, double dy)
 846 {
 847         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 848                 (*i)->move_event(dx, dy);
 849 }
 850
 851
 852 void
 853 MidiRegionView::note_dropped(CanvasMidiEvent* ev, double dt, uint8_t dnote)
 854 {
 855         // TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
 856         if (_selection.find(ev) != _selection.end()) {
 857                 uint8_t lowest_note_in_selection  = midi_stream_view()->lowest_note();
 858                 uint8_t highest_note_in_selection = midi_stream_view()->highest_note();
 859                 uint8_t highest_note_difference = 0;
 860
 861                 // find highest and lowest notes first
 862                 for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ) {
 863                         Selection::iterator next = i;
 864                         ++next;
 865
 866                         uint8_t pitch = (*i)->note()->note();
 867                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
 868                         highest_note_in_selection = std::max(highest_note_in_selection, pitch);
 869
 870                         i = next;
 871                 }
 872
 873                 /*
 874                 cerr << "dnote: " << (int) dnote << endl;
 875                 cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
 876                      << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
 877                 cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
 878                      << int(highest_note_in_selection) << endl;
 879                 cerr << "selection size: " << _selection.size() << endl;
 880                 cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
 881                 */
 882
 883                 // Make sure the note pitch does not exceed the MIDI standard range
 884                 if (dnote <= 127 && (highest_note_in_selection + dnote > 127)) {
 885                         highest_note_difference = highest_note_in_selection - 127;
 886                 }
 887
 888                 start_delta_command();
 889
 890                 for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ) {
 891                         Selection::iterator next = i;
 892                         ++next;
 893
 894                         command_remove_note(*i);
 895                         const boost::shared_ptr<Note> copy(new Note(*(*i)->note().get()));
 896
 897                         copy->set_time((*i)->note()->time() + dt);
 898                         if(copy->time() < 0) {
 899                                 copy->set_time(0);
 900                         }
 901
 902                         uint8_t original_pitch = (*i)->note()->note();
 903                         uint8_t new_pitch =  original_pitch + dnote - highest_note_difference;
 904
 905                         // keep notes in standard midi range
 906                         clamp_0_to_127(new_pitch);
 907
 908                         //notes which are dragged beyond the standard midi range snap back to their original place
 909                         if((original_pitch != 0 && new_pitch == 0) || (original_pitch != 127 && new_pitch == 127)) {
 910                                 new_pitch = original_pitch;
 911                         }
 912
 913                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
 914                         highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
 915
 916                         copy->set_note(new_pitch);
 917
 918                         command_add_note(copy);
 919
 920                         _marked_for_selection.insert(copy.get());
 921                         i = next;
 922                 }
 923
 924                 apply_command();
 925
 926                 // care about notes being moved beyond the upper/lower bounds on the canvas
 927                 if(lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
 928                    highest_note_in_selection > midi_stream_view()->highest_note()
 929                 ) {
 930                         midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
 931         }
 932 }
 933 }
 934
 935
 936 double
 937 MidiRegionView::snap_to(double x)
 938 {
 939         PublicEditor &editor = trackview.editor;
 940
 941         nframes_t frame = editor.pixel_to_frame(x);
 942         editor.snap_to(frame);
 943         return (double) editor.frame_to_pixel(frame);
 944 }
 945
 946 double
 947 MidiRegionView::get_position_pixels(void)
 948 {
 949         nframes_t  region_frame  = get_position();
 950         return trackview.editor.frame_to_pixel(region_frame);
 951 }
 952
 953 void
 954 MidiRegionView::begin_resizing(CanvasNote::NoteEnd note_end)
 955 {
 956         _resize_data.clear();
 957
 958         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 959                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
 960
 961                 // only insert CanvasNotes into the map
 962                 if(note) {
 963                         NoteResizeData *resize_data = new NoteResizeData();
 964                         resize_data->canvas_note = note;
 965
 966                         // create a new SimpleRect from the note which will be the resize preview
 967                         SimpleRect *resize_rect =
 968                                 new SimpleRect(
 969                                                 *group,
 970                                                 note->x1(),
 971                                                 note->y1(),
 972                                                 note->x2(),
 973                                                 note->y2());
 974
 975                         // calculate the colors: get the color settings
 976                         uint fill_color =
 977                                 UINT_RGBA_CHANGE_A(
 978                                                 ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get(),
 979                                                 128);
 980
 981                         // make the resize preview notes more transparent and bright
 982                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
 983
 984                         // calculate color based on note velocity
 985                         resize_rect->property_fill_color_rgba() =
 986                                 UINT_INTERPOLATE(
 987                                         note_fill_color(note->note()->velocity()),
 988                                         fill_color,
 989                                         0.85);
 990
 991                         resize_rect->property_outline_color_rgba() =
 992                                 ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get();
 993
 994                         resize_data->resize_rect = resize_rect;
 995
 996                         if(note_end == CanvasNote::NOTE_ON) {
 997                                 resize_data->current_x = note->x1();
 998                         } else { // NOTE_OFF
 999                                 resize_data->current_x = note->x2();
1000                         }
1001
1002                         _resize_data.push_back(resize_data);
1003                 }
1004         }
1005 }
1006
1007 void
1008 MidiRegionView::update_resizing(CanvasNote::NoteEnd note_end, double x, bool relative)
1009 {
1010         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1011                 SimpleRect     *resize_rect = (*i)->resize_rect;
1012                 CanvasNote     *canvas_note = (*i)->canvas_note;
1013
1014                 const double region_start = get_position_pixels();
1015
1016                 if(relative) {
1017                         (*i)->current_x = (*i)->current_x + x;
1018                 } else {
1019                         // x is in track relative, transform it to region relative
1020                         (*i)->current_x = x - region_start;
1021                 }
1022
1023                 double current_x = (*i)->current_x;
1024
1025                 if(note_end == CanvasNote::NOTE_ON) {
1026                         // because snapping works on world coordinates we have to transform current_x
1027                         // to world coordinates before snapping and transform it back afterwards
1028                         resize_rect->property_x1() = snap_to(region_start + current_x) - region_start;
1029                         resize_rect->property_x2() = canvas_note->x2();
1030                 } else {
1031                         // because snapping works on world coordinates we have to transform current_x
1032                         // to world coordinates before snapping and transform it back afterwards
1033                         resize_rect->property_x2() = snap_to(region_start + current_x) - region_start;
1034                         resize_rect->property_x1() = canvas_note->x1();
1035                 }
1036         }
1037 }
1038
1039 void
1040 MidiRegionView::commit_resizing(CanvasNote::NoteEnd note_end, double event_x, bool relative)
1041 {
1042         start_delta_command();
1043
1044         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1045                 CanvasNote *canvas_note = (*i)->canvas_note;
1046                 SimpleRect *resize_rect = (*i)->resize_rect;
1047                 double      current_x   = (*i)->current_x;
1048                 const double region_start = get_position_pixels();
1049
1050                 if(!relative) {
1051                         // event_x is in track relative, transform it to region relative
1052                         current_x = event_x - region_start;
1053                 }
1054
1055                 // because snapping works on world coordinates we have to transform current_x
1056                 // to world coordinates before snapping and transform it back afterwards
1057                 nframes_t current_frame = trackview.editor.pixel_to_frame(current_x + region_start);
1058                 trackview.editor.snap_to(current_frame);
1059                 current_frame -= get_position();
1060
1061                 const boost::shared_ptr<Note> copy(new Note(*(canvas_note->note().get())));
1062
1063                 // resize beginning of note
1064                 if (note_end == CanvasNote::NOTE_ON && current_frame < copy->end_time()) {
1065                         command_remove_note(canvas_note);
1066                         copy->on_event().time() = current_frame;
1067                         command_add_note(copy);
1068                         _marked_for_selection.insert(copy.get());
1069                 }
1070                 // resize end of note
1071                 if (note_end == CanvasNote::NOTE_OFF && current_frame > copy->time()) {
1072                         command_remove_note(canvas_note);
1073                         command_remove_note(canvas_note);
1074                         copy->off_event().time() = current_frame;
1075                         command_add_note(copy);
1076                         _marked_for_selection.insert(copy.get());
1077                 }
1078
1079                 delete resize_rect;
1080                 delete (*i);
1081         }
1082
1083         _resize_data.clear();
1084         apply_command();
1085 }
1086
1087
1088 void
1089 MidiRegionView::change_velocity(uint8_t velocity, bool relative)
1090 {
1091         start_delta_command();
1092         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
1093                 Selection::iterator next = i;
1094                 ++next;
1095
1096                 CanvasMidiEvent *event = *i;
1097                 const boost::shared_ptr<Note> copy(new Note(*(event->note().get())));
1098
1099                 if(relative) {
1100                         uint8_t new_velocity = copy->velocity() + velocity;
1101                         clamp_0_to_127(new_velocity);
1102
1103                         copy->set_velocity(new_velocity);
1104                 } else { // absolute
1105                         copy->set_velocity(velocity);
1106                 }
1107
1108                 command_remove_note(event);
1109                 command_add_note(copy);
1110
1111                 _marked_for_selection.insert(copy.get());
1112                 i = next;
1113         }
1114
1115         // dont keep notes selected if tweaking a single note
1116         if(_marked_for_selection.size() == 1) {
1117                 _marked_for_selection.clear();
1118         }
1119
1120         apply_command();
1121 }
1122
1123
1124 void
1125 MidiRegionView::note_entered(ArdourCanvas::CanvasMidiEvent* ev)
1126 {
1127         if (ev->note() && _mouse_state == EraseTouchDragging) {
1128                 start_delta_command();
1129                 ev->selected(true);
1130                 _delta_command->remove(ev->note());
1131         } else if (_mouse_state == SelectTouchDragging) {
1132                 note_selected(ev, true);
1133         }
1134 }
1135
1136
1137 void
1138 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
1139 {
1140         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
1141         if (msrc)
1142                 display_model(msrc->model());
1143 }
1144
1145 void
1146 MidiRegionView::set_frame_color()
1147 {
1148         if (frame) {
1149                 if (_selected && should_show_selection) {
1150                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
1151                 } else {
1152                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
1153                 }
1154         }
1155 }