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