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 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32
  33 #include "ardour/playlist.h"
  34 #include "ardour/tempo.h"
  35 #include "ardour/midi_region.h"
  36 #include "ardour/midi_source.h"
  37 #include "ardour/midi_diskstream.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40 #include "ardour/session.h"
  41
  42 #include "evoral/Parameter.hpp"
  43 #include "evoral/Control.hpp"
  44
  45 #include "automation_region_view.h"
  46 #include "automation_time_axis.h"
  47 #include "canvas-hit.h"
  48 #include "canvas-note.h"
  49 #include "canvas-program-change.h"
  50 #include "ghostregion.h"
  51 #include "gui_thread.h"
  52 #include "keyboard.h"
  53 #include "midi_cut_buffer.h"
  54 #include "midi_list_editor.h"
  55 #include "midi_region_view.h"
  56 #include "midi_streamview.h"
  57 #include "midi_time_axis.h"
  58 #include "midi_time_axis.h"
  59 #include "midi_util.h"
  60 #include "public_editor.h"
  61 #include "selection.h"
  62 #include "simpleline.h"
  63 #include "streamview.h"
  64 #include "utils.h"
  65
  66 #include "i18n.h"
  67
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace Editing;
  71 using namespace ArdourCanvas;
  72 using Gtkmm2ext::Keyboard;
  73
  74 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  75                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  76         : RegionView (parent, tv, r, spu, basic_color)
  77         , _force_channel(-1)
  78         , _last_channel_selection(0xFFFF)
  79         , _default_note_length(1.0)
  80         , _current_range_min(0)
  81         , _current_range_max(0)
  82         , _model_name(string())
  83         , _custom_device_mode(string())
  84         , _active_notes(0)
  85         , _note_group(new ArdourCanvas::Group(*parent))
  86         , _delta_command(0)
  87         , _diff_command(0)
  88         , _mouse_state(None)
  89         , _pressed_button(0)
  90         , _sort_needed (true)
  91         , _optimization_iterator (_events.end())
  92 {
  93         _note_group->raise_to_top();
  94 }
  95
  96 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  97                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
  98                 TimeAxisViewItem::Visibility visibility)
  99         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 100         , _force_channel(-1)
 101         , _last_channel_selection(0xFFFF)
 102         , _default_note_length(1.0)
 103         , _model_name(string())
 104         , _custom_device_mode(string())
 105         , _active_notes(0)
 106         , _note_group(new ArdourCanvas::Group(*parent))
 107         , _delta_command(0)
 108         , _diff_command(0)
 109         , _mouse_state(None)
 110         , _pressed_button(0)
 111         , _sort_needed (true)
 112         , _optimization_iterator (_events.end())
 113
 114 {
 115         _note_group->raise_to_top();
 116 }
 117
 118
 119 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 120         : sigc::trackable(other)
 121         , RegionView (other)
 122         , _force_channel(-1)
 123         , _last_channel_selection(0xFFFF)
 124         , _default_note_length(1.0)
 125         , _model_name(string())
 126         , _custom_device_mode(string())
 127         , _active_notes(0)
 128         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 129         , _delta_command(0)
 130         , _diff_command(0)
 131         , _mouse_state(None)
 132         , _pressed_button(0)
 133         , _sort_needed (true)
 134         , _optimization_iterator (_events.end())
 135 {
 136         Gdk::Color c;
 137         int r,g,b,a;
 138
 139         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 140         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 141
 142         init (c, false);
 143 }
 144
 145 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 146         : RegionView (other, boost::shared_ptr<Region> (region))
 147         , _force_channel(-1)
 148         , _last_channel_selection(0xFFFF)
 149         , _default_note_length(1.0)
 150         , _model_name(string())
 151         , _custom_device_mode(string())
 152         , _active_notes(0)
 153         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 154         , _delta_command(0)
 155         , _diff_command(0)
 156         , _mouse_state(None)
 157         , _pressed_button(0)
 158         , _sort_needed (true)
 159         , _optimization_iterator (_events.end())
 160 {
 161         Gdk::Color c;
 162         int r,g,b,a;
 163
 164         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 165         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 166
 167         init (c, true);
 168 }
 169
 170 void
 171 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 172 {
 173         if (wfd) {
 174                 midi_region()->midi_source(0)->load_model();
 175         }
 176
 177         _model = midi_region()->midi_source(0)->model();
 178         _enable_display = false;
 179
 180         RegionView::init (basic_color, false);
 181
 182         compute_colors (basic_color);
 183
 184         set_height (trackview.current_height());
 185
 186         region_muted ();
 187         region_sync_changed ();
 188         region_resized (BoundsChanged);
 189         region_locked ();
 190
 191         reset_width_dependent_items (_pixel_width);
 192
 193         set_colors ();
 194
 195         _enable_display = true;
 196         if (_model) {
 197                 if (wfd) {
 198                         display_model (_model);
 199                 }
 200         }
 201
 202         group->raise_to_top();
 203         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 204
 205         midi_view()->signal_channel_mode_changed().connect(
 206                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 207
 208         midi_view()->signal_midi_patch_settings_changed().connect(
 209                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 210 }
 211
 212 bool
 213 MidiRegionView::canvas_event(GdkEvent* ev)
 214 {
 215         PublicEditor& editor (trackview.editor());
 216
 217         if (!editor.internal_editing()) {
 218                 return false;
 219         }
 220
 221         static double drag_start_x, drag_start_y;
 222         static double last_x, last_y;
 223         double event_x, event_y;
 224         nframes64_t event_frame = 0;
 225         bool fine;
 226
 227         static ArdourCanvas::SimpleRect* drag_rect = 0;
 228
 229         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 230            to its items, which means that ev->type == GDK_SCROLL will never be seen
 231         */
 232
 233         switch (ev->type) {
 234         case GDK_SCROLL:
 235                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 236
 237                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 238                         change_velocities (true, fine, false);
 239                         return true;
 240                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 241                         change_velocities (false, fine, false);
 242                         return true;
 243                 } else {
 244                         return false;
 245                 }
 246                 break;
 247
 248         case GDK_KEY_PRESS:
 249
 250                 /* since GTK bindings are generally activated on press, and since
 251                    detectable auto-repeat is the name of the game and only sends
 252                    repeated presses, carry out key actions at key press, not release.
 253                 */
 254
 255                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 256                         _mouse_state = SelectTouchDragging;
 257                         return true;
 258
 259                 } else if (ev->key.keyval == GDK_Escape) {
 260                         clear_selection();
 261                         _mouse_state = None;
 262
 263                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 264
 265                         bool start = (ev->key.keyval == GDK_comma);
 266                         bool end = (ev->key.keyval == GDK_period);
 267                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 268                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 269
 270                         change_note_lengths (fine, shorter, start, end);
 271
 272                         return true;
 273
 274                 } else if (ev->key.keyval == GDK_Delete) {
 275
 276                         delete_selection();
 277                         return true;
 278
 279                 } else if (ev->key.keyval == GDK_Tab) {
 280
 281                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 282                                 goto_previous_note ();
 283                         } else {
 284                                 goto_next_note ();
 285                         }
 286                         return true;
 287
 288                 } else if (ev->key.keyval == GDK_Up) {
 289
 290                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 291                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 292
 293                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 294                                 change_velocities (true, fine, allow_smush);
 295                         } else {
 296                                 transpose (true, fine, allow_smush);
 297                         }
 298                         return true;
 299
 300                 } else if (ev->key.keyval == GDK_Down) {
 301
 302                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 303                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 304
 305                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 306                                 change_velocities (false, fine, allow_smush);
 307                         } else {
 308                                 transpose (false, fine, allow_smush);
 309                         }
 310                         return true;
 311
 312                 } else if (ev->key.keyval == GDK_Left) {
 313
 314                         nudge_notes (false);
 315                         return true;
 316
 317                 } else if (ev->key.keyval == GDK_Right) {
 318
 319                         nudge_notes (true);
 320                         return true;
 321
 322                 } else if (ev->key.keyval == GDK_Control_L) {
 323                         return true;
 324
 325                 } else if (ev->key.keyval == GDK_r) {
 326                         /* if we're not step editing, this really doesn't matter */
 327                         midi_view()->step_edit_rest ();
 328                         return true;
 329                 }
 330
 331                 return false;
 332
 333         case GDK_KEY_RELEASE:
 334                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 335                         _mouse_state = None;
 336                         return true;
 337                 }
 338                 return false;
 339
 340         case GDK_BUTTON_PRESS:
 341                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 342                         _pressed_button = ev->button.button;
 343                         _mouse_state = Pressed;
 344                         return true;
 345                 }
 346                 _pressed_button = ev->button.button;
 347                 return true;
 348
 349         case GDK_2BUTTON_PRESS:
 350                 return true;
 351
 352         case GDK_ENTER_NOTIFY:
 353                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 354                 Keyboard::magic_widget_grab_focus();
 355                 group->grab_focus();
 356                 break;
 357
 358         case GDK_MOTION_NOTIFY:
 359                 event_x = ev->motion.x;
 360                 event_y = ev->motion.y;
 361                 group->w2i(event_x, event_y);
 362
 363                 // convert event_x to global frame
 364                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 365                 trackview.editor().snap_to(event_frame);
 366                 // convert event_frame back to local coordinates relative to position
 367                 event_frame -= _region->position();
 368
 369                 switch (_mouse_state) {
 370                 case Pressed: // Drag start
 371
 372                         // Select drag start
 373                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 374                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 375                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 376                                 last_x = event_x;
 377                                 last_y = event_y;
 378                                 drag_start_x = event_x;
 379                                 drag_start_y = event_y;
 380
 381                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 382                                 drag_rect->property_x1() = event_x;
 383                                 drag_rect->property_y1() = event_y;
 384                                 drag_rect->property_x2() = event_x;
 385                                 drag_rect->property_y2() = event_y;
 386                                 drag_rect->property_outline_what() = 0xFF;
 387                                 drag_rect->property_outline_color_rgba()
 388                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 389                                 drag_rect->property_fill_color_rgba()
 390                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 391
 392                                 _mouse_state = SelectRectDragging;
 393                                 return true;
 394
 395                         // Add note drag start
 396                         } else if (editor.current_mouse_mode() == MouseRange) {
 397                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 398                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 399                                 last_x = event_x;
 400                                 last_y = event_y;
 401                                 drag_start_x = event_x;
 402                                 drag_start_y = event_y;
 403
 404                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 405                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 406
 407                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 408                                                 midi_stream_view()->y_to_note(event_y));
 409                                 drag_rect->property_x2() = event_x;
 410                                 drag_rect->property_y2() = drag_rect->property_y1()
 411                                                          + floor(midi_stream_view()->note_height());
 412                                 drag_rect->property_outline_what() = 0xFF;
 413                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 414                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 415
 416                                 _mouse_state = AddDragging;
 417                                 return true;
 418                         }
 419
 420                         return false;
 421
 422                 case SelectRectDragging: // Select drag motion
 423                 case AddDragging: // Add note drag motion
 424                         if (ev->motion.is_hint) {
 425                                 int t_x;
 426                                 int t_y;
 427                                 GdkModifierType state;
 428                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 429                                 event_x = t_x;
 430                                 event_y = t_y;
 431                         }
 432
 433                         if (_mouse_state == AddDragging)
 434                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 435
 436                         if (drag_rect) {
 437                                 if (event_x > drag_start_x)
 438                                         drag_rect->property_x2() = event_x;
 439                                 else
 440                                         drag_rect->property_x1() = event_x;
 441                         }
 442
 443                         if (drag_rect && _mouse_state == SelectRectDragging) {
 444                                 if (event_y > drag_start_y)
 445                                         drag_rect->property_y2() = event_y;
 446                                 else
 447                                         drag_rect->property_y1() = event_y;
 448
 449                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 450                         }
 451
 452                         last_x = event_x;
 453                         last_y = event_y;
 454
 455                 case SelectTouchDragging:
 456                         return false;
 457
 458                 default:
 459                         break;
 460                 }
 461                 break;
 462
 463         case GDK_BUTTON_RELEASE:
 464                 event_x = ev->motion.x;
 465                 event_y = ev->motion.y;
 466                 group->w2i(event_x, event_y);
 467                 group->ungrab(ev->button.time);
 468                 event_frame = trackview.editor().pixel_to_frame(event_x);
 469
 470                 if (ev->button.button == 3) {
 471                         return false;
 472                 } else if (_pressed_button != 1) {
 473                         return false;
 474                 }
 475
 476                 switch (_mouse_state) {
 477                 case Pressed: // Clicked
 478                         switch (editor.current_mouse_mode()) {
 479                         case MouseObject:
 480                         case MouseTimeFX:
 481                                 clear_selection();
 482                                 break;
 483                         case MouseRange:
 484                                 create_note_at(event_x, event_y, _default_note_length);
 485                                 break;
 486                         default:
 487                                 break;
 488                         }
 489                         _mouse_state = None;
 490                         break;
 491                 case SelectRectDragging: // Select drag done
 492                         _mouse_state = None;
 493                         delete drag_rect;
 494                         drag_rect = 0;
 495                         break;
 496                 case AddDragging: // Add drag done
 497                         _mouse_state = None;
 498                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 499                                 const double x      = drag_rect->property_x1();
 500                                 const double length = trackview.editor().pixel_to_frame(
 501                                                         drag_rect->property_x2() - drag_rect->property_x1());
 502
 503                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 504                         }
 505
 506                         delete drag_rect;
 507                         drag_rect = 0;
 508                 default: break;
 509                 }
 510
 511         default: break;
 512         }
 513
 514         return false;
 515 }
 516
 517 void
 518 MidiRegionView::show_list_editor ()
 519 {
 520         MidiListEditor* mle = new MidiListEditor (trackview.session(), midi_region());
 521         mle->show ();
 522 }
 523
 524 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 525  * \param x horizontal position in pixels
 526  * \param y vertical position in pixels
 527  * \param length duration of the note in beats */
 528 void
 529 MidiRegionView::create_note_at(double x, double y, double length)
 530 {
 531         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 532         MidiStreamView* const view = mtv->midi_view();
 533
 534         double note = midi_stream_view()->y_to_note(y);
 535
 536         assert(note >= 0.0);
 537         assert(note <= 127.0);
 538
 539         // Start of note in frames relative to region start
 540         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 541         assert(start_frames >= 0);
 542
 543         // Snap length
 544         length = frames_to_beats(
 545                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 546
 547         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 548                         frames_to_beats(start_frames + _region->start()), length,
 549                         (uint8_t)note, 0x40));
 550
 551         view->update_note_range(new_note->note());
 552
 553         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 554         cmd->add(new_note);
 555         _model->apply_command(*trackview.session(), cmd);
 556
 557         play_midi_note (new_note);
 558 }
 559
 560 void
 561 MidiRegionView::clear_events()
 562 {
 563         clear_selection();
 564
 565         MidiGhostRegion* gr;
 566         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 567                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 568                         gr->clear_events();
 569                 }
 570         }
 571
 572         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 573                 delete *i;
 574         }
 575
 576         _events.clear();
 577         _pgm_changes.clear();
 578         _sys_exes.clear();
 579         _optimization_iterator = _events.end();
 580 }
 581
 582
 583 void
 584 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 585 {
 586         _model = model;
 587         content_connection.disconnect ();
 588         content_connection = _model->ContentsChanged.connect (boost::bind (&MidiRegionView::redisplay_model, this));
 589
 590         clear_events ();
 591
 592         if (_enable_display) {
 593                 redisplay_model();
 594         }
 595 }
 596
 597
 598 void
 599 MidiRegionView::start_delta_command(string name)
 600 {
 601         if (!_delta_command) {
 602                 _delta_command = _model->new_delta_command(name);
 603         }
 604 }
 605
 606 void
 607 MidiRegionView::start_diff_command(string name)
 608 {
 609         if (!_diff_command) {
 610                 _diff_command = _model->new_diff_command(name);
 611         }
 612 }
 613
 614 void
 615 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 616 {
 617         if (_delta_command) {
 618                 _delta_command->add(note);
 619         }
 620         if (selected) {
 621                 _marked_for_selection.insert(note);
 622         }
 623         if (show_velocity) {
 624                 _marked_for_velocity.insert(note);
 625         }
 626 }
 627
 628 void
 629 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 630 {
 631         if (_delta_command && ev->note()) {
 632                 _delta_command->remove(ev->note());
 633         }
 634 }
 635
 636 void
 637 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 638                                  MidiModel::DiffCommand::Property property,
 639                                  uint8_t val)
 640 {
 641         if (_diff_command) {
 642                 _diff_command->change (ev->note(), property, val);
 643         }
 644 }
 645
 646 void
 647 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 648                                  MidiModel::DiffCommand::Property property,
 649                                  Evoral::MusicalTime val)
 650 {
 651         if (_diff_command) {
 652                 _diff_command->change (ev->note(), property, val);
 653         }
 654 }
 655
 656 void
 657 MidiRegionView::apply_delta()
 658 {
 659         if (!_delta_command) {
 660                 return;
 661         }
 662
 663         // Mark all selected notes for selection when model reloads
 664         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 665                 _marked_for_selection.insert((*i)->note());
 666         }
 667
 668         _model->apply_command(*trackview.session(), _delta_command);
 669         _delta_command = 0;
 670         midi_view()->midi_track()->diskstream()->playlist_modified();
 671
 672         _marked_for_selection.clear();
 673         _marked_for_velocity.clear();
 674 }
 675
 676 void
 677 MidiRegionView::apply_diff ()
 678 {
 679         if (!_diff_command) {
 680                 return;
 681         }
 682
 683         _model->apply_command(*trackview.session(), _diff_command);
 684         _diff_command = 0;
 685         midi_view()->midi_track()->diskstream()->playlist_modified();
 686
 687         _marked_for_velocity.clear();
 688 }
 689
 690 void
 691 MidiRegionView::apply_delta_as_subcommand()
 692 {
 693         if (!_delta_command) {
 694                 return;
 695         }
 696
 697         // Mark all selected notes for selection when model reloads
 698         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 699                 _marked_for_selection.insert((*i)->note());
 700         }
 701
 702         _model->apply_command_as_subcommand(*trackview.session(), _delta_command);
 703         _delta_command = 0;
 704         midi_view()->midi_track()->diskstream()->playlist_modified();
 705
 706         _marked_for_selection.clear();
 707         _marked_for_velocity.clear();
 708 }
 709
 710 void
 711 MidiRegionView::apply_diff_as_subcommand()
 712 {
 713         if (!_diff_command) {
 714                 return;
 715         }
 716
 717         // Mark all selected notes for selection when model reloads
 718         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 719                 _marked_for_selection.insert((*i)->note());
 720         }
 721
 722         _model->apply_command_as_subcommand(*trackview.session(), _diff_command);
 723         _diff_command = 0;
 724         midi_view()->midi_track()->diskstream()->playlist_modified();
 725
 726         _marked_for_selection.clear();
 727         _marked_for_velocity.clear();
 728 }
 729
 730 void
 731 MidiRegionView::abort_command()
 732 {
 733         delete _delta_command;
 734         _delta_command = 0;
 735         delete _diff_command;
 736         _diff_command = 0;
 737         clear_selection();
 738 }
 739
 740 CanvasNoteEvent*
 741 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 742 {
 743         if (_optimization_iterator != _events.end()) {
 744                 ++_optimization_iterator;
 745         }
 746
 747         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 748                 return *_optimization_iterator;
 749         }
 750
 751         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 752                 if ((*_optimization_iterator)->note() == note) {
 753                         return *_optimization_iterator;
 754                 }
 755         }
 756
 757         return 0;
 758 }
 759
 760 void
 761 MidiRegionView::redisplay_model()
 762 {
 763         // Don't redisplay the model if we're currently recording and displaying that
 764         if (_active_notes) {
 765                 return;
 766         }
 767
 768         if (!_model) {
 769                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 770                 return;
 771         }
 772
 773         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 774                 (*i)->invalidate ();
 775         }
 776
 777         MidiModel::ReadLock lock(_model->read_lock());
 778
 779         MidiModel::Notes& notes (_model->notes());
 780         _optimization_iterator = _events.begin();
 781
 782         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 783
 784                 boost::shared_ptr<NoteType> note (*n);
 785                 CanvasNoteEvent* cne;
 786                 bool visible;
 787
 788                 if (note_in_region_range (note, visible)) {
 789
 790                         if ((cne = find_canvas_note (note)) != 0) {
 791
 792                                 cne->validate ();
 793
 794                                 CanvasNote* cn;
 795                                 CanvasHit* ch;
 796
 797                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 798                                         update_note (cn);
 799                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 800                                         update_hit (ch);
 801                                 }
 802
 803                                 if (visible) {
 804                                         cne->show ();
 805                                 } else {
 806                                         cne->hide ();
 807                                 }
 808
 809                         } else {
 810
 811                                 add_note (note, visible);
 812                         }
 813
 814                 } else {
 815
 816                         if ((cne = find_canvas_note (note)) != 0) {
 817                                 cne->validate ();
 818                                 cne->hide ();
 819                         }
 820                 }
 821         }
 822
 823         /* remove note items that are no longer valid */
 824
 825         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 826                 if (!(*i)->valid ()) {
 827                         delete *i;
 828                         i = _events.erase (i);
 829                 } else {
 830                         ++i;
 831                 }
 832         }
 833
 834         display_sysexes();
 835         display_program_changes();
 836
 837         _marked_for_selection.clear ();
 838         _marked_for_velocity.clear ();
 839
 840         /* we may have caused _events to contain things out of order (e.g. if a note
 841            moved earlier or later). we don't generally need them in time order, but
 842            make a note that a sort is required for those cases that require it.
 843         */
 844
 845         _sort_needed = true;
 846 }
 847
 848 void
 849 MidiRegionView::display_program_changes()
 850 {
 851         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 852         if (!control) {
 853                 return;
 854         }
 855
 856         Glib::Mutex::Lock lock (control->list()->lock());
 857
 858         uint8_t channel = control->parameter().channel();
 859
 860         for (AutomationList::const_iterator event = control->list()->begin();
 861                         event != control->list()->end(); ++event) {
 862                 double event_time     = (*event)->when;
 863                 double program_number = floor((*event)->value + 0.5);
 864
 865                 // Get current value of bank select MSB at time of the program change
 866                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 867                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 868                 uint8_t msb = 0;
 869                 if (msb_control != 0) {
 870                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 871                 }
 872
 873                 // Get current value of bank select LSB at time of the program change
 874                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 875                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 876                 uint8_t lsb = 0;
 877                 if (lsb_control != 0) {
 878                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 879                 }
 880
 881                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 882
 883                 boost::shared_ptr<MIDI::Name::Patch> patch =
 884                         MIDI::Name::MidiPatchManager::instance().find_patch(
 885                                         _model_name, _custom_device_mode, channel, patch_key);
 886
 887                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 888
 889                 if (patch != 0) {
 890                         add_pgm_change(program_change, patch->name());
 891                 } else {
 892                         char buf[4];
 893                         snprintf(buf, 4, "%d", int(program_number));
 894                         add_pgm_change(program_change, buf);
 895                 }
 896         }
 897 }
 898
 899 void
 900 MidiRegionView::display_sysexes()
 901 {
 902         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 903                 Evoral::MusicalTime time = (*i)->time();
 904                 assert(time >= 0);
 905
 906                 ostringstream str;
 907                 str << hex;
 908                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 909                         str << int((*i)->buffer()[b]);
 910                         if (b != (*i)->size() -1) {
 911                                 str << " ";
 912                         }
 913                 }
 914                 string text = str.str();
 915
 916                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 917
 918                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 919
 920                 double height = midi_stream_view()->contents_height();
 921
 922                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 923                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 924
 925                 // Show unless program change is beyond the region bounds
 926                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 927                         sysex->hide();
 928                 } else {
 929                         sysex->show();
 930                 }
 931
 932                 _sys_exes.push_back(sysex);
 933         }
 934 }
 935
 936
 937 MidiRegionView::~MidiRegionView ()
 938 {
 939         in_destructor = true;
 940
 941         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 942
 943         if (_active_notes) {
 944                 end_write();
 945         }
 946
 947         _selection.clear();
 948         clear_events();
 949         delete _note_group;
 950         delete _delta_command;
 951 }
 952
 953 void
 954 MidiRegionView::region_resized (Change what_changed)
 955 {
 956         RegionView::region_resized(what_changed);
 957
 958         if (what_changed & ARDOUR::PositionChanged) {
 959                 set_duration(_region->length(), 0);
 960                 if (_enable_display) {
 961                         redisplay_model();
 962                 }
 963         }
 964 }
 965
 966 void
 967 MidiRegionView::reset_width_dependent_items (double pixel_width)
 968 {
 969         RegionView::reset_width_dependent_items(pixel_width);
 970         assert(_pixel_width == pixel_width);
 971
 972         if (_enable_display) {
 973                 redisplay_model();
 974         }
 975 }
 976
 977 void
 978 MidiRegionView::set_height (double height)
 979 {
 980         static const double FUDGE = 2.0;
 981         const double old_height = _height;
 982         RegionView::set_height(height);
 983         _height = height - FUDGE;
 984
 985         apply_note_range(midi_stream_view()->lowest_note(),
 986                          midi_stream_view()->highest_note(),
 987                          height != old_height + FUDGE);
 988
 989         if (name_pixbuf) {
 990                 name_pixbuf->raise_to_top();
 991         }
 992 }
 993
 994
 995 /** Apply the current note range from the stream view
 996  * by repositioning/hiding notes as necessary
 997  */
 998 void
 999 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1000 {
1001         if (!_enable_display) {
1002                 return;
1003         }
1004
1005         if (!force && _current_range_min == min && _current_range_max == max) {
1006                 return;
1007         }
1008
1009         _current_range_min = min;
1010         _current_range_max = max;
1011
1012         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1013                 CanvasNoteEvent* event = *i;
1014                 boost::shared_ptr<NoteType> note (event->note());
1015
1016                 if (note->note() < _current_range_min ||
1017                     note->note() > _current_range_max) {
1018                         event->hide();
1019                 } else {
1020                         event->show();
1021                 }
1022
1023                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1024
1025                         const double y1 = midi_stream_view()->note_to_y(note->note());
1026                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1027
1028                         cnote->property_y1() = y1;
1029                         cnote->property_y2() = y2;
1030
1031                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1032
1033                         double x = trackview.editor().frame_to_pixel(
1034                                 beats_to_frames(note->time()) - _region->start());
1035                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1036                         double y = midi_stream_view()->note_to_y(event->note()->note())
1037                                 + ((diamond_size-2.0) / 4.0);
1038
1039                         chit->set_height (diamond_size);
1040                         chit->move (x - chit->x1(), y - chit->y1());
1041                         chit->show ();
1042                 }
1043         }
1044 }
1045
1046 GhostRegion*
1047 MidiRegionView::add_ghost (TimeAxisView& tv)
1048 {
1049         CanvasNote* note;
1050
1051         double unit_position = _region->position () / samples_per_unit;
1052         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1053         MidiGhostRegion* ghost;
1054
1055         if (mtv && mtv->midi_view()) {
1056                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1057                    to allow having midi notes on top of note lines and waveforms.
1058                  */
1059                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1060         } else {
1061                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1062         }
1063
1064         ghost->set_height ();
1065         ghost->set_duration (_region->length() / samples_per_unit);
1066         ghosts.push_back (ghost);
1067
1068         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1069                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1070                         ghost->add_note(note);
1071                 }
1072         }
1073
1074         ghost->GoingAway.connect (boost::bind (&RegionView::remove_ghost, this, _1));
1075
1076         return ghost;
1077 }
1078
1079
1080 /** Begin tracking note state for successive calls to add_event
1081  */
1082 void
1083 MidiRegionView::begin_write()
1084 {
1085         assert(!_active_notes);
1086         _active_notes = new CanvasNote*[128];
1087         for (unsigned i=0; i < 128; ++i) {
1088                 _active_notes[i] = 0;
1089         }
1090 }
1091
1092
1093 /** Destroy note state for add_event
1094  */
1095 void
1096 MidiRegionView::end_write()
1097 {
1098         delete[] _active_notes;
1099         _active_notes = 0;
1100         _marked_for_selection.clear();
1101         _marked_for_velocity.clear();
1102 }
1103
1104
1105 /** Resolve an active MIDI note (while recording).
1106  */
1107 void
1108 MidiRegionView::resolve_note(uint8_t note, double end_time)
1109 {
1110         if (midi_view()->note_mode() != Sustained) {
1111                 return;
1112         }
1113
1114         if (_active_notes && _active_notes[note]) {
1115                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1116                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1117                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1118                 _active_notes[note] = 0;
1119         }
1120 }
1121
1122
1123 /** Extend active notes to rightmost edge of region (if length is changed)
1124  */
1125 void
1126 MidiRegionView::extend_active_notes()
1127 {
1128         if (!_active_notes) {
1129                 return;
1130         }
1131
1132         for (unsigned i=0; i < 128; ++i) {
1133                 if (_active_notes[i]) {
1134                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1135                 }
1136         }
1137 }
1138
1139 void
1140 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1141 {
1142         if (!trackview.editor().sound_notes()) {
1143                 return;
1144         }
1145
1146         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1147         assert(route_ui);
1148
1149         route_ui->midi_track()->write_immediate_event(
1150                         note->on_event().size(), note->on_event().buffer());
1151
1152         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1153         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1154                         * (1000 / (double)route_ui->session()->nominal_frame_rate());
1155         Glib::signal_timeout().connect(sigc::bind(sigc::mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1156                         note_length_ms, G_PRIORITY_DEFAULT);
1157 }
1158
1159 bool
1160 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1161 {
1162         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1163         assert(route_ui);
1164
1165         route_ui->midi_track()->write_immediate_event(
1166                         note->off_event().size(), note->off_event().buffer());
1167
1168         return false;
1169 }
1170
1171 bool
1172 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1173 {
1174         const nframes64_t note_start_frames = beats_to_frames(note->time());
1175
1176         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1177                 (note_start_frames < _region->start());
1178
1179         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1180                 (note->note() <= midi_stream_view()->highest_note());
1181
1182         return !outside;
1183 }
1184
1185 void
1186 MidiRegionView::update_note (CanvasNote* ev)
1187 {
1188         boost::shared_ptr<NoteType> note = ev->note();
1189
1190         const nframes64_t note_start_frames = beats_to_frames(note->time());
1191         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1192
1193         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1194         const double y1 = midi_stream_view()->note_to_y(note->note());
1195         const double note_endpixel =
1196                 trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1197
1198         ev->property_x1() = x;
1199         ev->property_y1() = y1;
1200         if (note->length() > 0) {
1201                 ev->property_x2() = note_endpixel;
1202         } else {
1203                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1204         }
1205         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1206
1207         if (note->length() == 0) {
1208                 if (_active_notes) {
1209                         assert(note->note() < 128);
1210                         // If this note is already active there's a stuck note,
1211                         // finish the old note rectangle
1212                         if (_active_notes[note->note()]) {
1213                                 CanvasNote* const old_rect = _active_notes[note->note()];
1214                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1215                                 old_rect->property_x2() = x;
1216                                 old_rect->property_outline_what() = (guint32) 0xF;
1217                         }
1218                         _active_notes[note->note()] = ev;
1219                 }
1220                 /* outline all but right edge */
1221                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1222         } else {
1223                 /* outline all edges */
1224                 ev->property_outline_what() = (guint32) 0xF;
1225         }
1226 }
1227
1228 void
1229 MidiRegionView::update_hit (CanvasHit* ev)
1230 {
1231         boost::shared_ptr<NoteType> note = ev->note();
1232
1233         const nframes64_t note_start_frames = beats_to_frames(note->time());
1234         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1235         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1236         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1237
1238         ev->move_to (x, y);
1239 }
1240
1241 /** Add a MIDI note to the view (with length).
1242  *
1243  * If in sustained mode, notes with length 0 will be considered active
1244  * notes, and resolve_note should be called when the corresponding note off
1245  * event arrives, to properly display the note.
1246  */
1247 void
1248 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1249 {
1250         CanvasNoteEvent* event = 0;
1251
1252         assert(note->time() >= 0);
1253         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1254
1255         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1256
1257         if (midi_view()->note_mode() == Sustained) {
1258
1259                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1260
1261                 update_note (ev_rect);
1262
1263                 event = ev_rect;
1264
1265                 MidiGhostRegion* gr;
1266
1267                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1268                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1269                                 gr->add_note(ev_rect);
1270                         }
1271                 }
1272
1273         } else if (midi_view()->note_mode() == Percussive) {
1274
1275                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1276
1277                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1278
1279                 update_hit (ev_diamond);
1280
1281                 event = ev_diamond;
1282
1283         } else {
1284                 event = 0;
1285         }
1286
1287         if (event) {
1288                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1289                         note_selected(event, true);
1290                 }
1291
1292                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1293                         event->show_velocity();
1294                 }
1295                 event->on_channel_selection_change(_last_channel_selection);
1296                 _events.push_back(event);
1297
1298                 if (visible) {
1299                         event->show();
1300                 } else {
1301                         event->hide ();
1302                 }
1303         }
1304 }
1305
1306 void
1307 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1308                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1309 {
1310         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1311
1312         start_delta_command (_("step add"));
1313         delta_add_note (new_note, true, false);
1314         apply_delta();
1315
1316         /* potentially extend region to hold new note */
1317
1318         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1319         nframes64_t region_end = _region->position() + _region->length() - 1;
1320
1321         if (end_frame > region_end) {
1322                 _region->set_length (end_frame, this);
1323         } else {
1324                 redisplay_model ();
1325         }
1326 }
1327
1328 void
1329 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1330 {
1331         assert(program.time >= 0);
1332
1333         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1334         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1335
1336         double height = midi_stream_view()->contents_height();
1337
1338         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1339                         new CanvasProgramChange(*this, *group,
1340                                         displaytext,
1341                                         height,
1342                                         x, 1.0,
1343                                         _model_name,
1344                                         _custom_device_mode,
1345                                         program.time, program.channel, program.value));
1346
1347         // Show unless program change is beyond the region bounds
1348         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1349                 pgm_change->hide();
1350         } else {
1351                 pgm_change->show();
1352         }
1353
1354         _pgm_changes.push_back(pgm_change);
1355 }
1356
1357 void
1358 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1359 {
1360         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1361         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1362         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1363         float msb = -1.0;
1364         if (msb_control != 0) {
1365                 msb = int(msb_control->get_float(true, time));
1366                 cerr << "got msb " << msb;
1367         }
1368
1369         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1370         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1371         float lsb = -1.0;
1372         if (lsb_control != 0) {
1373                 lsb = lsb_control->get_float(true, time);
1374                 cerr << " got lsb " << lsb;
1375         }
1376
1377         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1378         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1379         float program_number = -1.0;
1380         if (program_control != 0) {
1381                 program_number = program_control->get_float(true, time);
1382                 cerr << " got program " << program_number << endl;
1383         }
1384
1385         key.msb = (int) floor(msb + 0.5);
1386         key.lsb = (int) floor(lsb + 0.5);
1387         key.program_number = (int) floor(program_number + 0.5);
1388         assert(key.is_sane());
1389 }
1390
1391
1392 void
1393 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1394 {
1395         // TODO: Get the real event here and alter them at the original times
1396         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1397         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1398         if (msb_control != 0) {
1399                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1400         }
1401
1402         // TODO: Get the real event here and alter them at the original times
1403         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1404         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1405         if (lsb_control != 0) {
1406                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1407         }
1408
1409         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1410         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1411
1412         assert(program_control != 0);
1413         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1414
1415         redisplay_model();
1416 }
1417
1418 void
1419 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1420 {
1421         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1422         alter_program_change(program_change_event, new_patch);
1423 }
1424
1425 void
1426 MidiRegionView::previous_program(CanvasProgramChange& program)
1427 {
1428         MIDI::Name::PatchPrimaryKey key;
1429         get_patch_key_at(program.event_time(), program.channel(), key);
1430
1431         boost::shared_ptr<MIDI::Name::Patch> patch =
1432                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1433                                 _model_name,
1434                                 _custom_device_mode,
1435                                 program.channel(),
1436                                 key);
1437
1438         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1439         if (patch) {
1440                 alter_program_change(program_change_event, patch->patch_primary_key());
1441         }
1442 }
1443
1444 void
1445 MidiRegionView::next_program(CanvasProgramChange& program)
1446 {
1447         MIDI::Name::PatchPrimaryKey key;
1448         get_patch_key_at(program.event_time(), program.channel(), key);
1449
1450         boost::shared_ptr<MIDI::Name::Patch> patch =
1451                 MIDI::Name::MidiPatchManager::instance().next_patch(
1452                                 _model_name,
1453                                 _custom_device_mode,
1454                                 program.channel(),
1455                                 key);
1456
1457         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1458         if (patch) {
1459                 alter_program_change(program_change_event, patch->patch_primary_key());
1460         }
1461 }
1462
1463 void
1464 MidiRegionView::delete_selection()
1465 {
1466         if (_selection.empty()) {
1467                 return;
1468         }
1469
1470         start_delta_command (_("delete selection"));
1471
1472         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1473                 if ((*i)->selected()) {
1474                         _delta_command->remove((*i)->note());
1475                 }
1476         }
1477
1478         _selection.clear();
1479
1480         apply_delta ();
1481 }
1482
1483 void
1484 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1485 {
1486         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1487                 if ((*i)->selected() && (*i) != ev) {
1488                         (*i)->selected(false);
1489                         (*i)->hide_velocity();
1490                 }
1491         }
1492
1493         _selection.clear();
1494 }
1495
1496 void
1497 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1498 {
1499         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1500                 if ((*i) != ev) {
1501
1502                         Selection::iterator tmp = i;
1503                         ++tmp;
1504
1505                         (*i)->selected (false);
1506                         _selection.erase (i);
1507
1508                         i = tmp;
1509
1510                 } else {
1511                         ++i;
1512                 }
1513         }
1514
1515         /* don't bother with removing this regionview from the editor selection,
1516            since we're about to add another note, and thus put/keep this
1517            regionview in the editor selection.
1518         */
1519
1520         if (!ev->selected()) {
1521                 add_to_selection (ev);
1522         }
1523 }
1524
1525 void
1526 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1527 {
1528         if (!add) {
1529                 clear_selection_except(ev);
1530         }
1531
1532         if (!extend) {
1533
1534                 if (!ev->selected()) {
1535                         add_to_selection (ev);
1536                 }
1537
1538         } else {
1539                 /* find end of latest note selected, select all between that and the start of "ev" */
1540
1541                 Evoral::MusicalTime earliest = DBL_MAX;
1542                 Evoral::MusicalTime latest = 0;
1543
1544                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1545                         if ((*i)->note()->end_time() > latest) {
1546                                 latest = (*i)->note()->end_time();
1547                         }
1548                         if ((*i)->note()->time() < earliest) {
1549                                 earliest = (*i)->note()->time();
1550                         }
1551                 }
1552
1553                 if (ev->note()->end_time() > latest) {
1554                         latest = ev->note()->end_time();
1555                 }
1556
1557                 if (ev->note()->time() < earliest) {
1558                         earliest = ev->note()->time();
1559                 }
1560
1561                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1562
1563                         /* find notes entirely within OR spanning the earliest..latest range */
1564
1565                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1566                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1567                                 add_to_selection (*i);
1568                         }
1569
1570 #if 0
1571                         /* if events were guaranteed to be time sorted, we could do this.
1572                            but as of sept 10th 2009, they no longer are.
1573                         */
1574
1575                         if ((*i)->note()->time() > latest) {
1576                                 break;
1577                         }
1578 #endif
1579                 }
1580         }
1581 }
1582
1583 void
1584 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1585 {
1586         remove_from_selection (ev);
1587 }
1588
1589 void
1590 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1591 {
1592         if (x1 > x2) {
1593                 swap (x1, x2);
1594         }
1595
1596         if (y1 > y2) {
1597                 swap (y1, y2);
1598         }
1599
1600         // TODO: Make this faster by storing the last updated selection rect, and only
1601         // adjusting things that are in the area that appears/disappeared.
1602         // We probably need a tree to be able to find events in O(log(n)) time.
1603
1604         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1605
1606                 /* check if any corner of the note is inside the rect
1607
1608                    Notes:
1609                      1) this is computing "touched by", not "contained by" the rect.
1610                      2) this does not require that events be sorted in time.
1611                  */
1612
1613                 const double ix1 = (*i)->x1();
1614                 const double ix2 = (*i)->x2();
1615                 const double iy1 = (*i)->y1();
1616                 const double iy2 = (*i)->y2();
1617
1618                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1619                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1620                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1621                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1622
1623                         // Inside rectangle
1624                         if (!(*i)->selected()) {
1625                                 add_to_selection (*i);
1626                         }
1627                 } else if ((*i)->selected()) {
1628                         // Not inside rectangle
1629                         remove_from_selection (*i);
1630                 }
1631         }
1632 }
1633
1634 void
1635 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1636 {
1637         Selection::iterator i = _selection.find (ev);
1638
1639         if (i != _selection.end()) {
1640                 _selection.erase (i);
1641         }
1642
1643         ev->selected (false);
1644         ev->hide_velocity ();
1645
1646         if (_selection.empty()) {
1647                 PublicEditor& editor (trackview.editor());
1648                 editor.get_selection().remove (this);
1649         }
1650 }
1651
1652 void
1653 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1654 {
1655         bool add_mrv_selection = false;
1656
1657         if (_selection.empty()) {
1658                 add_mrv_selection = true;
1659         }
1660
1661         if (_selection.insert (ev).second) {
1662                 ev->selected (true);
1663                 play_midi_note ((ev)->note());
1664         }
1665
1666         if (add_mrv_selection) {
1667                 PublicEditor& editor (trackview.editor());
1668                 editor.get_selection().add (this);
1669         }
1670 }
1671
1672 void
1673 MidiRegionView::move_selection(double dx, double dy)
1674 {
1675         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1676                 (*i)->move_event(dx, dy);
1677         }
1678 }
1679
1680 void
1681 MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
1682 {
1683         assert (!_selection.empty());
1684
1685         uint8_t lowest_note_in_selection  = 127;
1686         uint8_t highest_note_in_selection = 0;
1687         uint8_t highest_note_difference = 0;
1688
1689         // find highest and lowest notes first
1690
1691         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1692                 uint8_t pitch = (*i)->note()->note();
1693                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1694                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1695         }
1696
1697         /*
1698         cerr << "dnote: " << (int) dnote << endl;
1699         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1700              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1701         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1702              << int(highest_note_in_selection) << endl;
1703         cerr << "selection size: " << _selection.size() << endl;
1704         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1705         */
1706
1707         // Make sure the note pitch does not exceed the MIDI standard range
1708         if (highest_note_in_selection + dnote > 127) {
1709                 highest_note_difference = highest_note_in_selection - 127;
1710         }
1711
1712         start_diff_command(_("move notes"));
1713
1714         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1715
1716                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1717
1718                 if (dt >= 0) {
1719                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1720                 } else {
1721                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1722                 }
1723
1724                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1725
1726                 if (new_time < 0) {
1727                         continue;
1728                 }
1729
1730                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1731
1732                 uint8_t original_pitch = (*i)->note()->note();
1733                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1734
1735                 // keep notes in standard midi range
1736                 clamp_to_0_127(new_pitch);
1737
1738                 // keep original pitch if note is dragged outside valid midi range
1739                 if ((original_pitch != 0 && new_pitch == 0)
1740                                 || (original_pitch != 127 && new_pitch == 127)) {
1741                         new_pitch = original_pitch;
1742                 }
1743
1744                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1745                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1746
1747                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1748         }
1749
1750         apply_diff();
1751
1752         // care about notes being moved beyond the upper/lower bounds on the canvas
1753         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1754             highest_note_in_selection > midi_stream_view()->highest_note()) {
1755                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1756         }
1757 }
1758
1759 nframes64_t
1760 MidiRegionView::snap_pixel_to_frame(double x)
1761 {
1762         PublicEditor& editor = trackview.editor();
1763         // x is region relative, convert it to global absolute frames
1764         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1765         editor.snap_to(frame);
1766         return frame - _region->position(); // convert back to region relative
1767 }
1768
1769 nframes64_t
1770 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1771 {
1772         PublicEditor& editor = trackview.editor();
1773         // x is region relative, convert it to global absolute frames
1774         nframes64_t frame = x + _region->position();
1775         editor.snap_to(frame);
1776         return frame - _region->position(); // convert back to region relative
1777 }
1778
1779 double
1780 MidiRegionView::snap_to_pixel(double x)
1781 {
1782         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1783 }
1784
1785 double
1786 MidiRegionView::get_position_pixels()
1787 {
1788         nframes64_t region_frame = get_position();
1789         return trackview.editor().frame_to_pixel(region_frame);
1790 }
1791
1792 double
1793 MidiRegionView::get_end_position_pixels()
1794 {
1795         nframes64_t frame = get_position() + get_duration ();
1796         return trackview.editor().frame_to_pixel(frame);
1797 }
1798
1799 nframes64_t
1800 MidiRegionView::beats_to_frames(double beats) const
1801 {
1802         return _time_converter.to(beats);
1803 }
1804
1805 double
1806 MidiRegionView::frames_to_beats(nframes64_t frames) const
1807 {
1808         return _time_converter.from(frames);
1809 }
1810
1811 void
1812 MidiRegionView::begin_resizing (bool /*at_front*/)
1813 {
1814         _resize_data.clear();
1815
1816         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1817                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1818
1819                 // only insert CanvasNotes into the map
1820                 if (note) {
1821                         NoteResizeData *resize_data = new NoteResizeData();
1822                         resize_data->canvas_note = note;
1823
1824                         // create a new SimpleRect from the note which will be the resize preview
1825                         SimpleRect *resize_rect = new SimpleRect(
1826                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1827
1828                         // calculate the colors: get the color settings
1829                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1830                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1831                                         128);
1832
1833                         // make the resize preview notes more transparent and bright
1834                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1835
1836                         // calculate color based on note velocity
1837                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1838                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1839                                         fill_color,
1840                                         0.85);
1841
1842                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1843                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1844
1845                         resize_data->resize_rect = resize_rect;
1846                         _resize_data.push_back(resize_data);
1847                 }
1848         }
1849 }
1850
1851 void
1852 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1853 {
1854         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1855                 SimpleRect* resize_rect = (*i)->resize_rect;
1856                 CanvasNote* canvas_note = (*i)->canvas_note;
1857                 double current_x;
1858
1859                 if (at_front) {
1860                         if (relative) {
1861                                 current_x = canvas_note->x1() + delta_x;
1862                         } else {
1863                                 // x is in track relative, transform it to region relative
1864                                 current_x = delta_x - get_position_pixels();
1865                         }
1866                 } else {
1867                         if (relative) {
1868                                 current_x = canvas_note->x2() + delta_x;
1869                         } else {
1870                                 // x is in track relative, transform it to region relative
1871                                 current_x = delta_x - get_end_position_pixels ();
1872                         }
1873                 }
1874
1875                 if (at_front) {
1876                         resize_rect->property_x1() = snap_to_pixel(current_x);
1877                         resize_rect->property_x2() = canvas_note->x2();
1878                 } else {
1879                         resize_rect->property_x2() = snap_to_pixel(current_x);
1880                         resize_rect->property_x1() = canvas_note->x1();
1881                 }
1882         }
1883 }
1884
1885 void
1886 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
1887 {
1888         start_diff_command(_("resize notes"));
1889
1890         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1891                 CanvasNote*  canvas_note = (*i)->canvas_note;
1892                 SimpleRect*  resize_rect = (*i)->resize_rect;
1893                 const double region_start = get_position_pixels();
1894                 double current_x;
1895
1896                 if (at_front) {
1897                         if (relative) {
1898                                 current_x = canvas_note->x1() + delta_x;
1899                         } else {
1900                                 // x is in track relative, transform it to region relative
1901                                 current_x = region_start + delta_x;
1902                         }
1903                 } else {
1904                         if (relative) {
1905                                 current_x = canvas_note->x2() + delta_x;
1906                         } else {
1907                                 // x is in track relative, transform it to region relative
1908                                 current_x = region_start + delta_x;
1909                         }
1910                 }
1911
1912                 current_x = snap_pixel_to_frame (current_x);
1913                 current_x = frames_to_beats (current_x);
1914
1915                 if (at_front && current_x < canvas_note->note()->end_time()) {
1916                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
1917
1918                         double len = canvas_note->note()->time() - current_x;
1919                         len += canvas_note->note()->length();
1920
1921                         if (len > 0) {
1922                                 /* XXX convert to beats */
1923                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1924                         }
1925                 }
1926
1927                 if (!at_front) {
1928                         double len = current_x - canvas_note->note()->time();
1929
1930                         if (len > 0) {
1931                                 /* XXX convert to beats */
1932                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1933                         }
1934                 }
1935
1936                 delete resize_rect;
1937                 delete (*i);
1938         }
1939
1940         _resize_data.clear();
1941         apply_diff();
1942 }
1943
1944 void
1945 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
1946 {
1947         uint8_t new_velocity;
1948
1949         if (relative) {
1950                 new_velocity = event->note()->velocity() + velocity;
1951                 clamp_to_0_127(new_velocity);
1952         } else {
1953                 new_velocity = velocity;
1954         }
1955
1956         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
1957 }
1958
1959 void
1960 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
1961 {
1962         uint8_t new_note;
1963
1964         if (relative) {
1965                 new_note = event->note()->note() + note;
1966         } else {
1967                 new_note = note;
1968         }
1969
1970         clamp_to_0_127 (new_note);
1971         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
1972 }
1973
1974 void
1975 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
1976 {
1977         bool change_start = false;
1978         bool change_length = false;
1979         Evoral::MusicalTime new_start;
1980         Evoral::MusicalTime new_length;
1981
1982         /* NOTE: the semantics of the two delta arguments are slightly subtle:
1983
1984            front_delta: if positive - move the start of the note later in time (shortening it)
1985                         if negative - move the start of the note earlier in time (lengthening it)
1986
1987            end_delta:   if positive - move the end of the note later in time (lengthening it)
1988                         if negative - move the end of the note earlier in time (shortening it)
1989          */
1990
1991         if (front_delta) {
1992                 if (front_delta < 0) {
1993
1994                         if (event->note()->time() < -front_delta) {
1995                                 new_start = 0;
1996                         } else {
1997                                 new_start = event->note()->time() + front_delta; // moves earlier
1998                         }
1999
2000                         /* start moved toward zero, so move the end point out to where it used to be.
2001                            Note that front_delta is negative, so this increases the length.
2002                         */
2003
2004                         new_length = event->note()->length() - front_delta;
2005                         change_start = true;
2006                         change_length = true;
2007
2008                 } else {
2009
2010                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2011
2012                         if (new_pos < event->note()->end_time()) {
2013                                 new_start = event->note()->time() + front_delta;
2014                                 /* start moved toward the end, so move the end point back to where it used to be */
2015                                 new_length = event->note()->length() - front_delta;
2016                                 change_start = true;
2017                                 change_length = true;
2018                         }
2019                 }
2020
2021         }
2022
2023         if (end_delta) {
2024                 bool can_change = true;
2025                 if (end_delta < 0) {
2026                         if (event->note()->length() < -end_delta) {
2027                                 can_change = false;
2028                         }
2029                 }
2030
2031                 if (can_change) {
2032                         new_length = event->note()->length() + end_delta;
2033                         change_length = true;
2034                 }
2035         }
2036
2037         if (change_start) {
2038                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2039         }
2040
2041         if (change_length) {
2042                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2043         }
2044 }
2045
2046 void
2047 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2048 {
2049         Evoral::MusicalTime new_time;
2050
2051         if (relative) {
2052                 if (delta < 0.0) {
2053                         if (event->note()->time() < -delta) {
2054                                 new_time = 0;
2055                         } else {
2056                                 new_time = event->note()->time() + delta;
2057                         }
2058                 } else {
2059                         new_time = event->note()->time() + delta;
2060                 }
2061         } else {
2062                 new_time = delta;
2063         }
2064
2065         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2066 }
2067
2068 void
2069 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2070 {
2071         int8_t delta;
2072
2073         if (_selection.empty()) {
2074                 return;
2075         }
2076
2077         if (fine) {
2078                 delta = 1;
2079         } else {
2080                 delta = 10;
2081         }
2082
2083         if (!up) {
2084                 delta = -delta;
2085         }
2086
2087         if (!allow_smush) {
2088                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2089                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2090                                 return;
2091                         }
2092                 }
2093         }
2094
2095         start_diff_command(_("change velocities"));
2096
2097         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2098                 Selection::iterator next = i;
2099                 ++next;
2100                 change_note_velocity (*i, delta, true);
2101                 i = next;
2102         }
2103
2104         apply_diff();
2105 }
2106
2107
2108 void
2109 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2110 {
2111         if (_selection.empty()) {
2112                 return;
2113         }
2114
2115         int8_t delta;
2116
2117         if (fine) {
2118                 delta = 1;
2119         } else {
2120                 delta = 12;
2121         }
2122
2123         if (!up) {
2124                 delta = -delta;
2125         }
2126
2127         if (!allow_smush) {
2128                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2129                         if (!up) {
2130                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2131                                         return;
2132                                 }
2133                         } else {
2134                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2135                                         return;
2136                                 }
2137                         }
2138                 }
2139         }
2140
2141         start_diff_command (_("transpose"));
2142
2143         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2144                 Selection::iterator next = i;
2145                 ++next;
2146                 change_note_note (*i, delta, true);
2147                 i = next;
2148         }
2149
2150         apply_diff ();
2151 }
2152
2153 void
2154 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2155 {
2156         Evoral::MusicalTime delta;
2157
2158         if (fine) {
2159                 delta = 1.0/128.0;
2160         } else {
2161                 /* grab the current grid distance */
2162                 bool success;
2163                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2164                 if (!success) {
2165                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2166                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2167                         return;
2168                 }
2169         }
2170
2171         if (shorter) {
2172                 delta = -delta;
2173         }
2174
2175         start_diff_command (_("change note lengths"));
2176
2177         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2178                 Selection::iterator next = i;
2179                 ++next;
2180
2181                 /* note the negation of the delta for start */
2182
2183                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2184                 i = next;
2185         }
2186
2187         apply_diff ();
2188
2189 }
2190
2191 void
2192 MidiRegionView::nudge_notes (bool forward)
2193 {
2194         if (_selection.empty()) {
2195                 return;
2196         }
2197
2198         /* pick a note as the point along the timeline to get the nudge distance.
2199            its not necessarily the earliest note, so we may want to pull the notes out
2200            into a vector and sort before using the first one.
2201         */
2202
2203         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2204         nframes64_t unused;
2205         nframes64_t distance;
2206
2207         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2208
2209                 /* grid is off - use nudge distance */
2210
2211                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2212
2213         } else {
2214
2215                 /* use grid */
2216
2217                 nframes64_t next_pos = ref_point;
2218
2219                 if (forward) {
2220                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2221                         next_pos += 1;
2222                 } else {
2223                         if (next_pos == 0) {
2224                                 return;
2225                         }
2226                         next_pos -= 1;
2227                 }
2228
2229                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2230                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2231                 distance = ref_point - next_pos;
2232                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2233         }
2234
2235         if (distance == 0) {
2236                 return;
2237         }
2238
2239         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2240
2241         if (!forward) {
2242                 delta = -delta;
2243         }
2244
2245         start_diff_command (_("nudge"));
2246
2247         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2248                 Selection::iterator next = i;
2249                 ++next;
2250                 change_note_time (*i, delta, true);
2251                 i = next;
2252         }
2253
2254         apply_diff ();
2255 }
2256
2257 void
2258 MidiRegionView::change_channel(uint8_t channel)
2259 {
2260         start_diff_command(_("change channel"));
2261         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2262                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2263         }
2264         apply_diff();
2265 }
2266
2267
2268 void
2269 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2270 {
2271         if (_mouse_state == SelectTouchDragging) {
2272                 note_selected(ev, true);
2273         }
2274
2275         char buf[4];
2276         snprintf (buf, sizeof (buf), "%d", (int) ev->note()->note());
2277         // This causes an infinite loop on note add sometimes
2278         //PublicEditor& editor (trackview.editor());
2279         //editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
2280         //editor.show_verbose_canvas_cursor_with (buf);
2281 }
2282
2283 void
2284 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2285 {
2286         PublicEditor& editor (trackview.editor());
2287         editor.hide_verbose_canvas_cursor ();
2288 }
2289
2290
2291 void
2292 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2293 {
2294         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2295         if (msrc)
2296                 display_model(msrc->model());
2297 }
2298
2299 void
2300 MidiRegionView::set_frame_color()
2301 {
2302         if (frame) {
2303                 if (_selected && should_show_selection) {
2304                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2305                 } else {
2306                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2307                 }
2308         }
2309 }
2310
2311 void
2312 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2313 {
2314         switch (mode) {
2315         case AllChannels:
2316         case FilterChannels:
2317                 _force_channel = -1;
2318                 break;
2319         case ForceChannel:
2320                 _force_channel = mask;
2321                 mask = 0xFFFF; // Show all notes as active (below)
2322         };
2323
2324         // Update notes for selection
2325         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2326                 (*i)->on_channel_selection_change(mask);
2327         }
2328
2329         _last_channel_selection = mask;
2330 }
2331
2332 void
2333 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2334 {
2335         _model_name         = model;
2336         _custom_device_mode = custom_device_mode;
2337         redisplay_model();
2338 }
2339
2340 void
2341 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2342 {
2343         if (_selection.empty()) {
2344                 return;
2345         }
2346
2347         PublicEditor& editor (trackview.editor());
2348
2349         switch (op) {
2350         case Cut:
2351         case Copy:
2352                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2353                 break;
2354         default:
2355                 break;
2356         }
2357
2358         start_delta_command();
2359
2360         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2361                 switch (op) {
2362                 case Copy:
2363                         break;
2364                 case Cut:
2365                         delta_remove_note (*i);
2366                         break;
2367                 case Clear:
2368                         break;
2369                 }
2370         }
2371
2372         apply_delta();
2373 }
2374
2375 MidiCutBuffer*
2376 MidiRegionView::selection_as_cut_buffer () const
2377 {
2378         Notes notes;
2379
2380         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2381                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*((*i)->note().get()))));
2382         }
2383
2384         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2385         cb->set (notes);
2386
2387         return cb;
2388 }
2389
2390 void
2391 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2392 {
2393         if (mcb.empty()) {
2394                 return;
2395         }
2396
2397         start_delta_command (_("paste"));
2398
2399         Evoral::MusicalTime beat_delta;
2400         Evoral::MusicalTime paste_pos_beats;
2401         Evoral::MusicalTime duration;
2402         Evoral::MusicalTime end_point;
2403
2404         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2405         paste_pos_beats = frames_to_beats (pos - _region->position());
2406         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2407         paste_pos_beats = 0;
2408
2409         _selection.clear ();
2410
2411         for (int n = 0; n < (int) times; ++n) {
2412
2413                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2414
2415                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2416                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2417
2418                         /* make all newly added notes selected */
2419
2420                         delta_add_note (copied_note, true);
2421                         end_point = copied_note->end_time();
2422                 }
2423
2424                 paste_pos_beats += duration;
2425         }
2426
2427         /* if we pasted past the current end of the region, extend the region */
2428
2429         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2430         nframes64_t region_end = _region->position() + _region->length() - 1;
2431
2432         if (end_frame > region_end) {
2433
2434                 trackview.session()->begin_reversible_command (_("paste"));
2435
2436                 XMLNode& before (_region->get_state());
2437                 _region->set_length (end_frame, this);
2438                 trackview.session()->add_command (new MementoCommand<Region>(*_region, &before, &_region->get_state()));
2439         }
2440
2441         apply_delta ();
2442 }
2443
2444 struct EventNoteTimeEarlyFirstComparator {
2445     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2446             return a->note()->time() < b->note()->time();
2447     }
2448 };
2449
2450 void
2451 MidiRegionView::time_sort_events ()
2452 {
2453         if (!_sort_needed) {
2454                 return;
2455         }
2456
2457         EventNoteTimeEarlyFirstComparator cmp;
2458         _events.sort (cmp);
2459
2460         _sort_needed = false;
2461 }
2462
2463 void
2464 MidiRegionView::goto_next_note ()
2465 {
2466         // nframes64_t pos = -1;
2467         bool use_next = false;
2468
2469         if (_events.back()->selected()) {
2470                 return;
2471         }
2472
2473         time_sort_events ();
2474
2475         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2476                 if ((*i)->selected()) {
2477                         use_next = true;
2478                         continue;
2479                 } else if (use_next) {
2480                         unique_select (*i);
2481                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2482                         return;
2483                 }
2484         }
2485
2486         /* use the first one */
2487
2488         unique_select (_events.front());
2489
2490 }
2491
2492 void
2493 MidiRegionView::goto_previous_note ()
2494 {
2495         // nframes64_t pos = -1;
2496         bool use_next = false;
2497
2498         if (_events.front()->selected()) {
2499                 return;
2500         }
2501
2502         time_sort_events ();
2503
2504         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2505                 if ((*i)->selected()) {
2506                         use_next = true;
2507                         continue;
2508                 } else if (use_next) {
2509                         unique_select (*i);
2510                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2511                         return;
2512                 }
2513         }
2514
2515         /* use the last one */
2516
2517         unique_select (*(_events.rbegin()));
2518 }
2519
2520 void
2521 MidiRegionView::selection_as_notelist (Notes& selected)
2522 {
2523         time_sort_events ();
2524
2525         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2526                 if ((*i)->selected()) {
2527                         selected.insert ((*i)->note());
2528                 }
2529         }
2530 }