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         , force_channel(-1)
  64         , last_channel_selection(0xFFFF)
  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         , force_channel(-1)
  81         , last_channel_selection(0xFFFF)
  82         , _default_note_length(0.0)
  83         , _active_notes(0)
  84         , _note_group(new ArdourCanvas::Group(*parent))
  85         , _delta_command(NULL)
  86         , _mouse_state(None)
  87         , _pressed_button(0)
  88
  89 {
  90         _note_group->raise_to_top();
  91 }
  92
  93 void
  94 MidiRegionView::init (Gdk::Color& basic_color, bool wfd)
  95 {
  96         if (wfd)
  97                 midi_region()->midi_source(0)->load_model();
  98
  99         const Meter& m = trackview.session().tempo_map().meter_at(_region->position());
 100         const Tempo& t = trackview.session().tempo_map().tempo_at(_region->position());
 101         _default_note_length = m.frames_per_bar(t, trackview.session().frame_rate())
 102                         / m.beats_per_bar();
 103
 104         _model = midi_region()->midi_source(0)->model();
 105         _enable_display = false;
 106
 107         RegionView::init(basic_color, false);
 108
 109         compute_colors (basic_color);
 110
 111         reset_width_dependent_items ((double) _region->length() / samples_per_unit);
 112
 113         set_y_position_and_height (0, trackview.height);
 114
 115         region_muted ();
 116         region_resized (BoundsChanged);
 117         region_locked ();
 118
 119         _region->StateChanged.connect (mem_fun(*this, &MidiRegionView::region_changed));
 120
 121         set_colors ();
 122
 123         _enable_display = true;
 124
 125         if (_model) {
 126                 if (wfd) {
 127                         redisplay_model();
 128                 }
 129                 _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 130         }
 131
 132         midi_region()->midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegionView::switch_source));
 133
 134         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 135
 136         midi_view()->signal_force_channel_changed().connect(
 137                         mem_fun(this, &MidiRegionView::midi_force_channel_changed));
 138         midi_view()->signal_channel_selection_changed().connect(
 139                         mem_fun(this, &MidiRegionView::midi_channel_selection_changed));
 140 }
 141
 142 bool
 143 MidiRegionView::canvas_event(GdkEvent* ev)
 144 {
 145         static bool delete_mod = false;
 146         static Editing::MidiEditMode original_mode;
 147
 148         static double drag_start_x, drag_start_y;
 149         static double last_x, last_y;
 150         double event_x, event_y;
 151         nframes_t event_frame = 0;
 152
 153         static ArdourCanvas::SimpleRect* drag_rect = NULL;
 154
 155         if (trackview.editor.current_mouse_mode() != MouseNote)
 156                 return false;
 157
 158         // Mmmm, spaghetti
 159
 160         switch (ev->type) {
 161         case GDK_KEY_PRESS:
 162                 if (ev->key.keyval == GDK_Delete && !delete_mod) {
 163                         delete_mod = true;
 164                         original_mode = trackview.editor.current_midi_edit_mode();
 165                         trackview.editor.set_midi_edit_mode(MidiEditErase);
 166                         start_delta_command(_("erase notes"));
 167                         _mouse_state = EraseTouchDragging;
 168                         return true;
 169                 } else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
 170                         _mouse_state = SelectTouchDragging;
 171                         return true;
 172                 } else if (ev->key.keyval == GDK_Escape) {
 173                         clear_selection();
 174                         _mouse_state = None;
 175                 }
 176                 return false;
 177
 178         case GDK_KEY_RELEASE:
 179                 if (ev->key.keyval == GDK_Delete) {
 180                         if (_mouse_state == EraseTouchDragging) {
 181                                 delete_selection();
 182                                 apply_command();
 183                         }
 184                         if (delete_mod) {
 185                                 trackview.editor.set_midi_edit_mode(original_mode);
 186                                 _mouse_state = None;
 187                                 delete_mod = false;
 188                         }
 189                         return true;
 190                 } else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
 191                         _mouse_state = None;
 192                         return true;
 193                 }
 194                 return false;
 195
 196         case GDK_BUTTON_PRESS:
 197                 if (_mouse_state != SelectTouchDragging &&
 198                         _mouse_state != EraseTouchDragging &&
 199                         ev->button.button == 1  ) {
 200                         _pressed_button = ev->button.button;
 201                         _mouse_state = Pressed;
 202                         return true;
 203                 }
 204                 _pressed_button = ev->button.button;
 205                 return false;
 206
 207         case GDK_ENTER_NOTIFY:
 208                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 209                 Keyboard::magic_widget_grab_focus();
 210                 group->grab_focus();
 211                 break;
 212
 213         case GDK_MOTION_NOTIFY:
 214                 event_x = ev->motion.x;
 215                 event_y = ev->motion.y;
 216                 group->w2i(event_x, event_y);
 217
 218                 // convert event_x to global frame
 219                 event_frame = trackview.editor.pixel_to_frame(event_x) + _region->position();
 220                 trackview.editor.snap_to(event_frame);
 221                 // convert event_frame back to local coordinates relative to position
 222                 event_frame -= _region->position();
 223
 224                 switch (_mouse_state) {
 225                 case Pressed: // Drag start
 226
 227                         // Select drag start
 228                         if (_pressed_button == 1 && trackview.editor.current_midi_edit_mode() == MidiEditSelect) {
 229                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 230                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 231                                 last_x = event_x;
 232                                 last_y = event_y;
 233                                 drag_start_x = event_x;
 234                                 drag_start_y = event_y;
 235
 236                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 237                                 drag_rect->property_x1() = event_x;
 238                                 drag_rect->property_y1() = event_y;
 239                                 drag_rect->property_x2() = event_x;
 240                                 drag_rect->property_y2() = event_y;
 241                                 drag_rect->property_outline_what() = 0xFF;
 242                                 drag_rect->property_outline_color_rgba()
 243                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 244                                 drag_rect->property_fill_color_rgba()
 245                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 246
 247                                 _mouse_state = SelectRectDragging;
 248                                 return true;
 249
 250                         // Add note drag start
 251                         } else if (trackview.editor.current_midi_edit_mode() == MidiEditPencil) {
 252                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 253                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 254                                 last_x = event_x;
 255                                 last_y = event_y;
 256                                 drag_start_x = event_x;
 257                                 drag_start_y = event_y;
 258
 259                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 260                                 drag_rect->property_x1() = trackview.editor.frame_to_pixel(event_frame);
 261
 262                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(midi_stream_view()->y_to_note(event_y));
 263                                 drag_rect->property_x2() = event_x;
 264                                 drag_rect->property_y2() = drag_rect->property_y1() + floor(midi_stream_view()->note_height());
 265                                 drag_rect->property_outline_what() = 0xFF;
 266                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 267
 268                                 drag_rect->property_fill_color_rgba() = 0xFFFFFF66;
 269
 270                                 _mouse_state = AddDragging;
 271                                 return true;
 272                         }
 273
 274                         return false;
 275
 276                 case SelectRectDragging: // Select drag motion
 277                 case AddDragging: // Add note drag motion
 278                         if (ev->motion.is_hint) {
 279                                 int t_x;
 280                                 int t_y;
 281                                 GdkModifierType state;
 282                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 283                                 event_x = t_x;
 284                                 event_y = t_y;
 285                         }
 286
 287                         if (_mouse_state == AddDragging)
 288                                 event_x = trackview.editor.frame_to_pixel(event_frame);
 289
 290                         if (drag_rect)
 291                                 if (event_x > drag_start_x)
 292                                         drag_rect->property_x2() = event_x;
 293                                 else
 294                                         drag_rect->property_x1() = event_x;
 295
 296                         if (drag_rect && _mouse_state == SelectRectDragging) {
 297                                 if (event_y > drag_start_y)
 298                                         drag_rect->property_y2() = event_y;
 299                                 else
 300                                         drag_rect->property_y1() = event_y;
 301
 302                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 303                         }
 304
 305                         last_x = event_x;
 306                         last_y = event_y;
 307
 308                 case EraseTouchDragging:
 309                 case SelectTouchDragging:
 310                         return false;
 311
 312                 default:
 313                         break;
 314                 }
 315                 break;
 316
 317         case GDK_BUTTON_RELEASE:
 318                 event_x = ev->motion.x;
 319                 event_y = ev->motion.y;
 320                 group->w2i(event_x, event_y);
 321                 group->ungrab(ev->button.time);
 322                 event_frame = trackview.editor.pixel_to_frame(event_x);
 323
 324                 if(_pressed_button != 1) {
 325                         return false;
 326                 }
 327
 328                 switch (_mouse_state) {
 329                 case Pressed: // Clicked
 330                         switch (trackview.editor.current_midi_edit_mode()) {
 331                         case MidiEditSelect:
 332                         case MidiEditResize:
 333                                 clear_selection();
 334                                 break;
 335                         case MidiEditPencil:
 336                                 create_note_at(event_x, event_y, _default_note_length);
 337                         default:
 338                                 break;
 339                         }
 340                         _mouse_state = None;
 341                         return true;
 342                 case SelectRectDragging: // Select drag done
 343                         _mouse_state = None;
 344                         delete drag_rect;
 345                         drag_rect = NULL;
 346                         return true;
 347                 case AddDragging: // Add drag done
 348                         _mouse_state = None;
 349                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 350                                 const double x      = drag_rect->property_x1();
 351                                 const double length = trackview.editor.pixel_to_frame(
 352                                                         drag_rect->property_x2() - drag_rect->property_x1());
 353
 354                                 create_note_at(x, drag_rect->property_y1(), length);
 355                         }
 356
 357                         delete drag_rect;
 358                         drag_rect = NULL;
 359                         return true;
 360                 default:
 361                         break;
 362                 }
 363
 364         default:
 365                 break;
 366         }
 367
 368         return false;
 369 }
 370
 371
 372 /** Add a note to the model, and the view, at a canvas (click) coordinate */
 373 void
 374 MidiRegionView::create_note_at(double x, double y, double duration)
 375 {
 376         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 377         MidiStreamView* const view = mtv->midi_view();
 378
 379         double note = midi_stream_view()->y_to_note(y);
 380
 381         assert(note >= 0.0);
 382         assert(note <= 127.0);
 383
 384         nframes_t new_note_time = trackview.editor.pixel_to_frame (x);
 385         assert(new_note_time >= 0);
 386         new_note_time += _region->start();
 387
 388         /*
 389         const Meter& m = trackview.session().tempo_map().meter_at(new_note_time);
 390         const Tempo& t = trackview.session().tempo_map().tempo_at(new_note_time);
 391         double duration = m.frames_per_bar(t, trackview.session().frame_rate()) / m.beats_per_bar();
 392         */
 393
 394         // we need to snap here again in nframes_t in order to be sample accurate
 395         // since note time is region-absolute but snap_to_frame expects position-relative
 396         // time we have to coordinate transform back and forth here.
 397         nframes_t new_note_time_position_relative = new_note_time      - _region->start();
 398         new_note_time = snap_to_frame(new_note_time_position_relative) + _region->start();
 399
 400         // we need to snap the duration too to be sample accurate
 401         nframes_t new_note_duration = nframes_t(duration);
 402         new_note_duration = snap_to_frame(new_note_time_position_relative + new_note_duration) + _region->start()
 403                             - new_note_time;
 404
 405         const boost::shared_ptr<Note> new_note(new Note(0, new_note_time, new_note_duration, (uint8_t)note, 0x40));
 406         view->update_bounds(new_note->note());
 407
 408         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 409         cmd->add(new_note);
 410         _model->apply_command(cmd);
 411
 412         //add_note(new_note);
 413 }
 414
 415
 416 void
 417 MidiRegionView::clear_events()
 418 {
 419         clear_selection();
 420
 421         MidiGhostRegion* gr;
 422         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 423                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 424                         gr->clear_events();
 425                 }
 426         }
 427
 428         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i)
 429                 delete *i;
 430
 431         _events.clear();
 432 }
 433
 434
 435 void
 436 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 437 {
 438         _model = model;
 439
 440         if (_enable_display)
 441                 redisplay_model();
 442 }
 443
 444
 445 void
 446 MidiRegionView::redisplay_model()
 447 {
 448         // Don't redisplay the model if we're currently recording and displaying that
 449         if (_active_notes)
 450                 return;
 451
 452         if (_model) {
 453
 454                 clear_events();
 455                 begin_write();
 456
 457                 _model->read_lock();
 458
 459                 /*
 460                 MidiModel::Notes notes = _model->notes();
 461                 cerr << endl << "Model contains " << notes.size() << " Notes:" << endl;
 462                 for(MidiModel::Notes::iterator i = notes.begin(); i != notes.end(); ++i) {
 463                         Note note = *(*i).get();
 464                         cerr << "MODEL: Note time: " << note.time() << " duration: " << note.duration()
 465                              << "   end-time: " << note.end_time()
 466                              << "   velocity: " << int(note.velocity())
 467                              //<< " Note-on: " << note.on_event().
 468                              //<< " Note-off: " << note.off_event()
 469                              << endl;
 470                 }*/
 471
 472                 for (size_t i=0; i < _model->n_notes(); ++i) {
 473                         add_note(_model->note_at(i));
 474                 }
 475
 476                 end_write();
 477
 478                 /*for (Automatable::Controls::const_iterator i = _model->controls().begin();
 479                                 i != _model->controls().end(); ++i) {
 480
 481                         assert(i->second);
 482
 483                         boost::shared_ptr<AutomationTimeAxisView> at
 484                                 = midi_view()->automation_child(i->second->parameter());
 485                         if (!at)
 486                                 continue;
 487
 488                         Gdk::Color col = midi_stream_view()->get_region_color();
 489
 490                         boost::shared_ptr<AutomationRegionView> arv;
 491
 492                         {
 493                                 Glib::Mutex::Lock list_lock (i->second->list()->lock());
 494
 495                                 arv = boost::shared_ptr<AutomationRegionView>(
 496                                                 new AutomationRegionView(at->canvas_display,
 497                                                         *at.get(), _region, i->second->list(),
 498                                                         midi_stream_view()->get_samples_per_unit(), col));
 499                         }
 500
 501                         arv->set_duration(_region->length(), this);
 502                         arv->init(col, true);
 503
 504                         _automation_children.insert(std::make_pair(i->second->parameter(), arv));
 505                 }*/
 506
 507                 _model->read_unlock();
 508
 509         } else {
 510                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 511         }
 512 }
 513
 514
 515 MidiRegionView::~MidiRegionView ()
 516 {
 517         in_destructor = true;
 518
 519         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 520
 521         if (_active_notes)
 522                 end_write();
 523
 524         _selection.clear();
 525         clear_events();
 526         delete _note_group;
 527         delete _delta_command;
 528 }
 529
 530
 531 void
 532 MidiRegionView::region_resized (Change what_changed)
 533 {
 534         RegionView::region_resized(what_changed);
 535
 536         if (what_changed & ARDOUR::PositionChanged) {
 537                 if (_enable_display)
 538                         redisplay_model();
 539         }
 540 }
 541
 542 void
 543 MidiRegionView::reset_width_dependent_items (double pixel_width)
 544 {
 545         RegionView::reset_width_dependent_items(pixel_width);
 546         assert(_pixel_width == pixel_width);
 547
 548         if (_enable_display)
 549                 redisplay_model();
 550 }
 551
 552 void
 553 MidiRegionView::set_y_position_and_height (double y, double h)
 554 {
 555         RegionView::set_y_position_and_height(y, h - 1);
 556
 557         if (_enable_display) {
 558
 559                 _model->read_lock();
 560
 561                 for (std::vector<CanvasMidiEvent*>::const_iterator i = _events.begin(); i != _events.end(); ++i) {
 562                         CanvasNote* note = dynamic_cast<CanvasNote*>(*i);
 563                         if (note && note->note()) {
 564                                 if (note->note()->note() < midi_stream_view()->lowest_note() ||
 565                                    note->note()->note() > midi_stream_view()->highest_note()) {
 566                                         if (canvas_item_visible(note)) {
 567                                                 note->hide();
 568                                         }
 569                                 }
 570                                 else {
 571                                         const double y1 = midi_stream_view()->note_to_y(note->note()->note());
 572                                         const double y2 = y1 + floor(midi_stream_view()->note_height());
 573
 574                                         if (!canvas_item_visible(note)) {
 575                                                 note->show();
 576                                         }
 577
 578                                         note->hide_velocity();
 579                                         note->property_y1() = y1;
 580                                         note->property_y2() = y2;
 581                                         if(note->selected()) {
 582                                                 note->show_velocity();
 583                                 }
 584                         }
 585                 }
 586                 }
 587
 588                 _model->read_unlock();
 589         }
 590
 591         if (name_text) {
 592                 name_text->raise_to_top();
 593         }
 594 }
 595
 596 GhostRegion*
 597 MidiRegionView::add_ghost (TimeAxisView& tv)
 598 {
 599         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
 600         CanvasNote* note;
 601         assert(rtv);
 602
 603         double unit_position = _region->position () / samples_per_unit;
 604         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
 605         MidiGhostRegion* ghost;
 606
 607         if (mtv && mtv->midi_view()) {
 608                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group.
 609                    this is because it's nice to have midi notes on top of the note lines and
 610                    audio waveforms under it.
 611                  */
 612                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
 613         }
 614         else {
 615                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
 616         }
 617
 618         ghost->set_height ();
 619         ghost->set_duration (_region->length() / samples_per_unit);
 620         ghosts.push_back (ghost);
 621
 622         for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 623                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
 624                         ghost->add_note(note);
 625                 }
 626         }
 627
 628         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
 629
 630         return ghost;
 631 }
 632
 633
 634 /** Begin tracking note state for successive calls to add_event
 635  */
 636 void
 637 MidiRegionView::begin_write()
 638 {
 639         assert(!_active_notes);
 640         _active_notes = new CanvasNote*[128];
 641         for (unsigned i=0; i < 128; ++i)
 642                 _active_notes[i] = NULL;
 643 }
 644
 645
 646 /** Destroy note state for add_event
 647  */
 648 void
 649 MidiRegionView::end_write()
 650 {
 651         delete[] _active_notes;
 652         _active_notes = NULL;
 653         _marked_for_selection.clear();
 654 }
 655
 656
 657 /** Resolve an active MIDI note (while recording).
 658  */
 659 void
 660 MidiRegionView::resolve_note(uint8_t note, double end_time)
 661 {
 662         if (midi_view()->note_mode() != Sustained)
 663                 return;
 664
 665         if (_active_notes && _active_notes[note]) {
 666                 _active_notes[note]->property_x2() = trackview.editor.frame_to_pixel((nframes_t)end_time);
 667                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
 668                 _active_notes[note] = NULL;
 669         }
 670 }
 671
 672
 673 /** Extend active notes to rightmost edge of region (if length is changed)
 674  */
 675 void
 676 MidiRegionView::extend_active_notes()
 677 {
 678         if (!_active_notes)
 679                 return;
 680
 681         for (unsigned i=0; i < 128; ++i)
 682                 if (_active_notes[i])
 683                         _active_notes[i]->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 684 }
 685
 686
 687 /** Add a MIDI note to the view (with duration).
 688  *
 689  * If in sustained mode, notes with duration 0 will be considered active
 690  * notes, and resolve_note should be called when the corresponding note off
 691  * event arrives, to properly display the note.
 692  */
 693 void
 694 MidiRegionView::add_note(const boost::shared_ptr<Note> note)
 695 {
 696         assert(note->time() >= 0);
 697         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
 698
 699         // dont display notes beyond the region bounds
 700         if(
 701                         note->time() - _region->start() >= _region->length() ||
 702                         note->time() <  _region->start() ||
 703                         note->note() < midi_stream_view()->lowest_note() ||
 704                         note->note() > midi_stream_view()->highest_note()
 705           ) {
 706                 return;
 707         }
 708
 709         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 710
 711         CanvasMidiEvent *event = 0;
 712
 713         const double x = trackview.editor.frame_to_pixel((nframes_t)note->time() - _region->start());
 714
 715         if (midi_view()->note_mode() == Sustained) {
 716
 717                 //cerr << "MRV::add_note sustained " << note->note() << " @ " << note->time()
 718                 //      << " .. " << note->end_time() << endl;
 719
 720                 const double y1 = midi_stream_view()->note_to_y(note->note());
 721                 const double note_endpixel =
 722                         trackview.editor.frame_to_pixel((nframes_t)note->end_time() - _region->start());
 723
 724                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
 725                 ev_rect->property_x1() = x;
 726                 ev_rect->property_y1() = y1;
 727                 if (note->duration() > 0)
 728                         ev_rect->property_x2() = note_endpixel;
 729                 else
 730                         ev_rect->property_x2() = trackview.editor.frame_to_pixel(_region->length());
 731                 ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
 732
 733                 if (note->duration() == 0) {
 734                         _active_notes[note->note()] = ev_rect;
 735                         /* outline all but right edge */
 736                         ev_rect->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
 737                 } else {
 738                         /* outline all edges */
 739                         ev_rect->property_outline_what() = (guint32) 0xF;
 740                 }
 741
 742                 ev_rect->show();
 743                 _events.push_back(ev_rect);
 744                 event = ev_rect;
 745
 746                 MidiGhostRegion* gr;
 747
 748                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 749                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 750                                 gr->add_note(ev_rect);
 751                         }
 752                 }
 753
 754         } else if (midi_view()->note_mode() == Percussive) {
 755
 756                 //cerr << "MRV::add_note percussive " << note->note() << " @ " << note->time()
 757                 //      << " .. " << note->end_time() << endl;
 758
 759                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
 760                 const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
 761
 762                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
 763                 ev_diamond->move(x, y);
 764                 ev_diamond->show();
 765                 _events.push_back(ev_diamond);
 766                 event = ev_diamond;
 767         } else {
 768                 event = 0;
 769         }
 770
 771         if(event) {
 772                 if(_marked_for_selection.find(event->note()) != _marked_for_selection.end()) {
 773                                 note_selected(event, true);
 774                 }
 775                 event->on_channel_selection_change(last_channel_selection);
 776         }
 777 }
 778
 779 void
 780 MidiRegionView::delete_selection()
 781 {
 782         assert(_delta_command);
 783
 784         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 785                 if ((*i)->selected())
 786                         _delta_command->remove((*i)->note());
 787
 788         _selection.clear();
 789 }
 790
 791 void
 792 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasMidiEvent* ev)
 793 {
 794         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 795                 if ((*i)->selected() && (*i) != ev)
 796                         (*i)->selected(false);
 797
 798         _selection.clear();
 799 }
 800
 801 void
 802 MidiRegionView::unique_select(ArdourCanvas::CanvasMidiEvent* ev)
 803 {
 804         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 805                 if ((*i) != ev)
 806                         (*i)->selected(false);
 807
 808         _selection.clear();
 809         _selection.insert(ev);
 810
 811         if ( ! ev->selected())
 812                 ev->selected(true);
 813 }
 814
 815 void
 816 MidiRegionView::note_selected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 817 {
 818         if ( ! add)
 819                 clear_selection_except(ev);
 820
 821         _selection.insert(ev);
 822
 823         if ( ! ev->selected())
 824                 ev->selected(true);
 825 }
 826
 827
 828 void
 829 MidiRegionView::note_deselected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
 830 {
 831         if ( ! add)
 832                 clear_selection_except(ev);
 833
 834         _selection.erase(ev);
 835
 836         if (ev->selected())
 837                 ev->selected(false);
 838 }
 839
 840
 841 void
 842 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
 843 {
 844         const double last_y = std::min(y1, y2);
 845         const double y      = std::max(y1, y2);
 846
 847         // FIXME: so, so, so much slower than this should be
 848
 849         if (x1 < x2) {
 850                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 851                         if ((*i)->x1() >= x1 && (*i)->x1() <= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 852                                 (*i)->selected(true);
 853                                 _selection.insert(*i);
 854                         } else {
 855                                 (*i)->selected(false);
 856                                 _selection.erase(*i);
 857                         }
 858                 }
 859         } else {
 860                 for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
 861                         if ((*i)->x2() <= x1 && (*i)->x2() >= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
 862                                 (*i)->selected(true);
 863                                 _selection.insert(*i);
 864                         } else {
 865                                 (*i)->selected(false);
 866                                 _selection.erase(*i);
 867                         }
 868                 }
 869         }
 870 }
 871
 872
 873 void
 874 MidiRegionView::move_selection(double dx, double dy)
 875 {
 876         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
 877                 (*i)->move_event(dx, dy);
 878 }
 879
 880
 881 void
 882 MidiRegionView::note_dropped(CanvasMidiEvent* ev, double dt, uint8_t dnote)
 883 {
 884         // TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
 885         if (_selection.find(ev) != _selection.end()) {
 886                 uint8_t lowest_note_in_selection  = midi_stream_view()->lowest_note();
 887                 uint8_t highest_note_in_selection = midi_stream_view()->highest_note();
 888                 uint8_t highest_note_difference = 0;
 889
 890                 // find highest and lowest notes first
 891                 for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ) {
 892                         Selection::iterator next = i;
 893                         ++next;
 894
 895                         uint8_t pitch = (*i)->note()->note();
 896                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
 897                         highest_note_in_selection = std::max(highest_note_in_selection, pitch);
 898
 899                         i = next;
 900                 }
 901
 902                 /*
 903                 cerr << "dnote: " << (int) dnote << endl;
 904                 cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
 905                      << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
 906                 cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
 907                      << int(highest_note_in_selection) << endl;
 908                 cerr << "selection size: " << _selection.size() << endl;
 909                 cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
 910                 */
 911
 912                 // Make sure the note pitch does not exceed the MIDI standard range
 913                 if (dnote <= 127 && (highest_note_in_selection + dnote > 127)) {
 914                         highest_note_difference = highest_note_in_selection - 127;
 915                 }
 916
 917                 start_delta_command(_("move notes"));
 918
 919                 for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ) {
 920                         Selection::iterator next = i;
 921                         ++next;
 922
 923                         const boost::shared_ptr<Note> copy(new Note(*(*i)->note().get()));
 924
 925                         // we need to snap here again in nframes_t in order to be sample accurate
 926                         double new_note_time = (*i)->note()->time();
 927                         new_note_time +=  dt;
 928
 929                         // keep notes inside region if dragged beyond left region bound
 930                         if(new_note_time < _region->start()) {
 931                                 new_note_time = _region->start();
 932                         }
 933
 934                         // since note time is region-absolute but snap_to_frame expects position-relative
 935                         // time we have to coordinate transform back and forth here.
 936                         new_note_time = snap_to_frame(nframes_t(new_note_time) - _region->start()) + _region->start();
 937
 938                         copy->set_time(new_note_time);
 939
 940                         uint8_t original_pitch = (*i)->note()->note();
 941                         uint8_t new_pitch =  original_pitch + dnote - highest_note_difference;
 942
 943                         // keep notes in standard midi range
 944                         clamp_0_to_127(new_pitch);
 945
 946                         //notes which are dragged beyond the standard midi range snap back to their original place
 947                         if((original_pitch != 0 && new_pitch == 0) || (original_pitch != 127 && new_pitch == 127)) {
 948                                 new_pitch = original_pitch;
 949                         }
 950
 951                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
 952                         highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
 953
 954                         copy->set_note(new_pitch);
 955
 956                         command_remove_note(*i);
 957                         command_add_note(copy);
 958
 959                         _marked_for_selection.insert(copy);
 960                         i = next;
 961                 }
 962                 apply_command();
 963
 964                 // care about notes being moved beyond the upper/lower bounds on the canvas
 965                 if(lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
 966                    highest_note_in_selection > midi_stream_view()->highest_note()
 967                 ) {
 968                         midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
 969         }
 970 }
 971 }
 972
 973 nframes_t
 974 MidiRegionView::snap_to_frame(double x)
 975 {
 976         PublicEditor &editor = trackview.editor;
 977         // x is region relative
 978         // convert x to global frame
 979         nframes_t frame = editor.pixel_to_frame(x) + _region->position();
 980         editor.snap_to(frame);
 981         // convert event_frame back to local coordinates relative to position
 982         frame -= _region->position();
 983         return frame;
 984 }
 985
 986 nframes_t
 987 MidiRegionView::snap_to_frame(nframes_t x)
 988 {
 989         PublicEditor &editor = trackview.editor;
 990         // x is region relative
 991         // convert x to global frame
 992         nframes_t frame = x + _region->position();
 993         editor.snap_to(frame);
 994         // convert event_frame back to local coordinates relative to position
 995         frame -= _region->position();
 996         return frame;
 997 }
 998
 999 double
1000 MidiRegionView::snap_to_pixel(double x)
1001 {
1002         return (double) trackview.editor.frame_to_pixel(snap_to_frame(x));
1003 }
1004
1005 double
1006 MidiRegionView::get_position_pixels(void)
1007 {
1008         nframes_t  region_frame  = get_position();
1009         return trackview.editor.frame_to_pixel(region_frame);
1010 }
1011
1012 void
1013 MidiRegionView::begin_resizing(CanvasNote::NoteEnd note_end)
1014 {
1015         _resize_data.clear();
1016
1017         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1018                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1019
1020                 // only insert CanvasNotes into the map
1021                 if(note) {
1022                         NoteResizeData *resize_data = new NoteResizeData();
1023                         resize_data->canvas_note = note;
1024
1025                         // create a new SimpleRect from the note which will be the resize preview
1026                         SimpleRect *resize_rect =
1027                                 new SimpleRect(
1028                                                 *group,
1029                                                 note->x1(),
1030                                                 note->y1(),
1031                                                 note->x2(),
1032                                                 note->y2());
1033
1034                         // calculate the colors: get the color settings
1035                         uint fill_color =
1036                                 UINT_RGBA_CHANGE_A(
1037                                                 ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get(),
1038                                                 128);
1039
1040                         // make the resize preview notes more transparent and bright
1041                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1042
1043                         // calculate color based on note velocity
1044                         resize_rect->property_fill_color_rgba() =
1045                                 UINT_INTERPOLATE(
1046                                         note_fill_color(note->note()->velocity()),
1047                                         fill_color,
1048                                         0.85);
1049
1050                         resize_rect->property_outline_color_rgba() =
1051                                 ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get();
1052
1053                         resize_data->resize_rect = resize_rect;
1054
1055                         if(note_end == CanvasNote::NOTE_ON) {
1056                                 resize_data->current_x = note->x1();
1057                         } else { // NOTE_OFF
1058                                 resize_data->current_x = note->x2();
1059                         }
1060
1061                         _resize_data.push_back(resize_data);
1062                 }
1063         }
1064 }
1065
1066 void
1067 MidiRegionView::update_resizing(CanvasNote::NoteEnd note_end, double x, bool relative)
1068 {
1069         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1070                 SimpleRect     *resize_rect = (*i)->resize_rect;
1071                 CanvasNote     *canvas_note = (*i)->canvas_note;
1072
1073                 const double region_start = get_position_pixels();
1074
1075                 if(relative) {
1076                         (*i)->current_x = (*i)->current_x + x;
1077                 } else {
1078                         // x is in track relative, transform it to region relative
1079                         (*i)->current_x = x - region_start;
1080                 }
1081
1082                 double current_x = (*i)->current_x;
1083
1084                 if(note_end == CanvasNote::NOTE_ON) {
1085                         resize_rect->property_x1() = snap_to_pixel(current_x);
1086                         resize_rect->property_x2() = canvas_note->x2();
1087                 } else {
1088                         resize_rect->property_x2() = snap_to_pixel(current_x);
1089                         resize_rect->property_x1() = canvas_note->x1();
1090                 }
1091         }
1092 }
1093
1094 void
1095 MidiRegionView::commit_resizing(CanvasNote::NoteEnd note_end, double event_x, bool relative)
1096 {
1097         start_delta_command(_("resize notes"));
1098
1099         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1100                 CanvasNote *canvas_note = (*i)->canvas_note;
1101                 SimpleRect *resize_rect = (*i)->resize_rect;
1102                 double      current_x   = (*i)->current_x;
1103                 const double position = get_position_pixels();
1104
1105                 if(!relative) {
1106                         // event_x is in track relative, transform it to region relative
1107                         current_x = event_x - position;
1108                 }
1109
1110                 // because snapping works on world coordinates we have to transform current_x
1111                 // to world coordinates before snapping and transform it back afterwards
1112                 nframes_t current_frame = snap_to_frame(current_x);
1113                 // transform to region start relative
1114                 current_frame += _region->start();
1115
1116                 const boost::shared_ptr<Note> copy(new Note(*(canvas_note->note().get())));
1117
1118                 // resize beginning of note
1119                 if (note_end == CanvasNote::NOTE_ON && current_frame < copy->end_time()) {
1120                         command_remove_note(canvas_note);
1121                         copy->on_event().time() = current_frame;
1122                         command_add_note(copy);
1123                         _marked_for_selection.insert(copy);
1124                 }
1125                 // resize end of note
1126                 if (note_end == CanvasNote::NOTE_OFF && current_frame > copy->time()) {
1127                         command_remove_note(canvas_note);
1128                         command_remove_note(canvas_note);
1129                         copy->off_event().time() = current_frame;
1130                         command_add_note(copy);
1131                         _marked_for_selection.insert(copy);
1132                 }
1133
1134                 delete resize_rect;
1135                 delete (*i);
1136         }
1137
1138         _resize_data.clear();
1139         apply_command();
1140 }
1141
1142
1143 void
1144 MidiRegionView::change_velocity(uint8_t velocity, bool relative)
1145 {
1146         start_delta_command(_("change velocity"));
1147         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
1148                 Selection::iterator next = i;
1149                 ++next;
1150
1151                 CanvasMidiEvent *event = *i;
1152                 const boost::shared_ptr<Note> copy(new Note(*(event->note().get())));
1153
1154                 if(relative) {
1155                         uint8_t new_velocity = copy->velocity() + velocity;
1156                         clamp_0_to_127(new_velocity);
1157
1158                         copy->set_velocity(new_velocity);
1159                 } else { // absolute
1160                         copy->set_velocity(velocity);
1161                 }
1162
1163                 command_remove_note(event);
1164                 command_add_note(copy);
1165
1166                 _marked_for_selection.insert(copy);
1167                 i = next;
1168         }
1169
1170         // dont keep notes selected if tweaking a single note
1171         if(_marked_for_selection.size() == 1) {
1172                 _marked_for_selection.clear();
1173         }
1174
1175         apply_command();
1176 }
1177
1178 void
1179 MidiRegionView::change_channel(uint8_t channel)
1180 {
1181         start_delta_command(_("change channel"));
1182         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
1183                 Selection::iterator next = i;
1184                 ++next;
1185
1186                 CanvasMidiEvent *event = *i;
1187                 const boost::shared_ptr<Note> copy(new Note(*(event->note().get())));
1188
1189                 copy->set_channel(channel);
1190
1191                 command_remove_note(event);
1192                 command_add_note(copy);
1193
1194                 _marked_for_selection.insert(copy);
1195                 i = next;
1196         }
1197
1198         // dont keep notes selected if tweaking a single note
1199         if(_marked_for_selection.size() == 1) {
1200                 _marked_for_selection.clear();
1201         }
1202
1203         apply_command();
1204 }
1205
1206
1207 void
1208 MidiRegionView::note_entered(ArdourCanvas::CanvasMidiEvent* ev)
1209 {
1210         if (ev->note() && _mouse_state == EraseTouchDragging) {
1211                 start_delta_command(_("note entered"));
1212                 ev->selected(true);
1213                 _delta_command->remove(ev->note());
1214         } else if (_mouse_state == SelectTouchDragging) {
1215                 note_selected(ev, true);
1216         }
1217 }
1218
1219
1220 void
1221 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
1222 {
1223         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
1224         if (msrc)
1225                 display_model(msrc->model());
1226 }
1227
1228 void
1229 MidiRegionView::set_frame_color()
1230 {
1231         if (frame) {
1232                 if (_selected && should_show_selection) {
1233                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
1234                 } else {
1235                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
1236                 }
1237         }
1238 }
1239
1240 void
1241 MidiRegionView::midi_force_channel_changed(int8_t channel)
1242 {
1243         force_channel = channel;
1244 }
1245
1246 void
1247 MidiRegionView::midi_channel_selection_changed(uint16_t selection)
1248 {
1249         if(force_channel >= 0) {
1250                 selection = 0xFFFF;
1251         }
1252
1253         for(std::vector<ArdourCanvas::CanvasMidiEvent*>::iterator i = _events.begin();
1254                 i != _events.end();
1255                 ++i) {
1256                 (*i)->on_channel_selection_change(selection);
1257         }
1258         last_channel_selection = selection;
1259 }