git.sesse.net Git - nageru/blob - futatabi/mainwindow.cpp

   1 #include "mainwindow.h"
   2
   3 #include "clip_list.h"
   4 #include "export.h"
   5 #include "flags.h"
   6 #include "frame_on_disk.h"
   7 #include "player.h"
   8 #include "futatabi_midi_mapping.pb.h"
   9 #include "shared/aboutdialog.h"
  10 #include "shared/disk_space_estimator.h"
  11 #include "shared/post_to_main_thread.h"
  12 #include "shared/timebase.h"
  13 #include "ui_mainwindow.h"
  14
  15 #include <QDesktopServices>
  16 #include <QFileDialog>
  17 #include <QMessageBox>
  18 #include <QMouseEvent>
  19 #include <QNetworkReply>
  20 #include <QShortcut>
  21 #include <QTimer>
  22 #include <QWheelEvent>
  23 #include <future>
  24 #include <sqlite3.h>
  25 #include <string>
  26 #include <vector>
  27
  28 using namespace std;
  29 using namespace std::placeholders;
  30
  31 MainWindow *global_mainwindow = nullptr;
  32 static ClipList *cliplist_clips;
  33 static PlayList *playlist_clips;
  34
  35 extern int64_t current_pts;
  36
  37 namespace {
  38
  39 void set_pts_in(int64_t pts, int64_t current_pts, ClipProxy &clip)
  40 {
  41         pts = std::max<int64_t>(pts, 0);
  42         if (clip->pts_out == -1) {
  43                 pts = std::min(pts, current_pts);
  44         } else {
  45                 pts = std::min(pts, clip->pts_out);
  46         }
  47         clip->pts_in = pts;
  48 }
  49
  50 }  // namespace
  51
  52 MainWindow::MainWindow()
  53         : ui(new Ui::MainWindow),
  54           db(global_flags.working_directory + "/futatabi.db"),
  55           midi_mapper(this)
  56 {
  57         global_mainwindow = this;
  58         ui->setupUi(this);
  59
  60         // Load settings from database.
  61         SettingsProto settings = db.get_settings();
  62         if (!global_flags.interpolation_quality_set) {
  63                 if (settings.interpolation_quality() != 0) {
  64                         global_flags.interpolation_quality = settings.interpolation_quality() - 1;
  65                 }
  66         }
  67         if (!global_flags.cue_point_padding_set) {
  68                 global_flags.cue_point_padding_seconds = settings.cue_point_padding_seconds();  // Default 0 is fine.
  69         }
  70         if (global_flags.interpolation_quality == 0) {
  71                 // Allocate something just for simplicity; we won't be using it
  72                 // unless the user changes runtime, in which case 1 is fine.
  73                 flow_initialized_interpolation_quality = 1;
  74         } else {
  75                 flow_initialized_interpolation_quality = global_flags.interpolation_quality;
  76         }
  77         save_settings();
  78
  79         // The menus.
  80         connect(ui->exit_action, &QAction::triggered, this, &MainWindow::exit_triggered);
  81         connect(ui->export_cliplist_clip_multitrack_action, &QAction::triggered, this, &MainWindow::export_cliplist_clip_multitrack_triggered);
  82         connect(ui->export_playlist_clip_interpolated_action, &QAction::triggered, this, &MainWindow::export_playlist_clip_interpolated_triggered);
  83         connect(ui->manual_action, &QAction::triggered, this, &MainWindow::manual_triggered);
  84         connect(ui->about_action, &QAction::triggered, this, &MainWindow::about_triggered);
  85         connect(ui->undo_action, &QAction::triggered, this, &MainWindow::undo_triggered);
  86         connect(ui->redo_action, &QAction::triggered, this, &MainWindow::redo_triggered);
  87         ui->undo_action->setEnabled(false);
  88         ui->redo_action->setEnabled(false);
  89
  90         // The quality group.
  91         QActionGroup *quality_group = new QActionGroup(ui->interpolation_menu);
  92         quality_group->addAction(ui->quality_0_action);
  93         quality_group->addAction(ui->quality_1_action);
  94         quality_group->addAction(ui->quality_2_action);
  95         quality_group->addAction(ui->quality_3_action);
  96         quality_group->addAction(ui->quality_4_action);
  97         if (global_flags.interpolation_quality == 0) {
  98                 ui->quality_0_action->setChecked(true);
  99         } else if (global_flags.interpolation_quality == 1) {
 100                 ui->quality_1_action->setChecked(true);
 101         } else if (global_flags.interpolation_quality == 2) {
 102                 ui->quality_2_action->setChecked(true);
 103         } else if (global_flags.interpolation_quality == 3) {
 104                 ui->quality_3_action->setChecked(true);
 105         } else if (global_flags.interpolation_quality == 4) {
 106                 ui->quality_4_action->setChecked(true);
 107         } else {
 108                 assert(false);
 109         }
 110         connect(ui->quality_0_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 0, _1));
 111         connect(ui->quality_1_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 1, _1));
 112         connect(ui->quality_2_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 2, _1));
 113         connect(ui->quality_3_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 3, _1));
 114         connect(ui->quality_4_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 4, _1));
 115
 116         // The cue point padding group.
 117         QActionGroup *padding_group = new QActionGroup(ui->interpolation_menu);
 118         padding_group->addAction(ui->padding_0_action);
 119         padding_group->addAction(ui->padding_1_action);
 120         padding_group->addAction(ui->padding_2_action);
 121         padding_group->addAction(ui->padding_5_action);
 122         if (global_flags.cue_point_padding_seconds <= 1e-3) {
 123                 ui->padding_0_action->setChecked(true);
 124         } else if (fabs(global_flags.cue_point_padding_seconds - 1.0) < 1e-3) {
 125                 ui->padding_1_action->setChecked(true);
 126         } else if (fabs(global_flags.cue_point_padding_seconds - 2.0) < 1e-3) {
 127                 ui->padding_2_action->setChecked(true);
 128         } else if (fabs(global_flags.cue_point_padding_seconds - 5.0) < 1e-3) {
 129                 ui->padding_5_action->setChecked(true);
 130         } else {
 131                 // Nothing to check, which is fine.
 132         }
 133         connect(ui->padding_0_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 0.0, _1));
 134         connect(ui->padding_1_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 1.0, _1));
 135         connect(ui->padding_2_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 2.0, _1));
 136         connect(ui->padding_5_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 5.0, _1));
 137
 138         global_disk_space_estimator = new DiskSpaceEstimator(bind(&MainWindow::report_disk_space, this, _1, _2));
 139         disk_free_label = new QLabel(this);
 140         disk_free_label->setStyleSheet("QLabel {padding-right: 5px;}");
 141         ui->menuBar->setCornerWidget(disk_free_label);
 142
 143         StateProto state = db.get_state();
 144         undo_stack.push_back(state);  // The undo stack always has the current state on top.
 145
 146         cliplist_clips = new ClipList(state.clip_list());
 147         ui->clip_list->setModel(cliplist_clips);
 148         connect(cliplist_clips, &ClipList::any_content_changed, this, &MainWindow::content_changed);
 149
 150         playlist_clips = new PlayList(state.play_list());
 151         ui->playlist->setModel(playlist_clips);
 152         connect(playlist_clips, &PlayList::any_content_changed, this, &MainWindow::content_changed);
 153
 154         // For un-highlighting when we lose focus.
 155         ui->clip_list->installEventFilter(this);
 156
 157         // For scrubbing in the pts columns.
 158         ui->clip_list->viewport()->installEventFilter(this);
 159         ui->playlist->viewport()->installEventFilter(this);
 160
 161         QShortcut *cue_in = new QShortcut(QKeySequence(Qt::Key_A), this);
 162         connect(cue_in, &QShortcut::activated, ui->cue_in_btn, &QPushButton::click);
 163         connect(ui->cue_in_btn, &QPushButton::clicked, this, &MainWindow::cue_in_clicked);
 164
 165         QShortcut *cue_out = new QShortcut(QKeySequence(Qt::Key_S), this);
 166         connect(cue_out, &QShortcut::activated, ui->cue_out_btn, &QPushButton::click);
 167         connect(ui->cue_out_btn, &QPushButton::clicked, this, &MainWindow::cue_out_clicked);
 168
 169         QShortcut *queue = new QShortcut(QKeySequence(Qt::Key_Q), this);
 170         connect(queue, &QShortcut::activated, ui->queue_btn, &QPushButton::click);
 171         connect(ui->queue_btn, &QPushButton::clicked, this, &MainWindow::queue_clicked);
 172
 173         QShortcut *preview = new QShortcut(QKeySequence(Qt::Key_W), this);
 174         connect(preview, &QShortcut::activated, ui->preview_btn, &QPushButton::click);
 175         connect(ui->preview_btn, &QPushButton::clicked, this, &MainWindow::preview_clicked);
 176
 177         QShortcut *play = new QShortcut(QKeySequence(Qt::Key_Space), this);
 178         connect(play, &QShortcut::activated, ui->play_btn, &QPushButton::click);
 179         connect(ui->play_btn, &QPushButton::clicked, this, &MainWindow::play_clicked);
 180
 181         connect(ui->stop_btn, &QPushButton::clicked, this, &MainWindow::stop_clicked);
 182         ui->stop_btn->setEnabled(false);
 183
 184         connect(ui->speed_slider, &QAbstractSlider::valueChanged, this, &MainWindow::speed_slider_changed);
 185
 186         connect(ui->playlist_duplicate_btn, &QPushButton::clicked, this, &MainWindow::playlist_duplicate);
 187
 188         connect(ui->playlist_remove_btn, &QPushButton::clicked, this, &MainWindow::playlist_remove);
 189         QShortcut *delete_key = new QShortcut(QKeySequence(Qt::Key_Delete), ui->playlist);
 190         connect(delete_key, &QShortcut::activated, [this] {
 191                 if (ui->playlist->hasFocus()) {
 192                         playlist_remove();
 193                 }
 194         });
 195
 196         // TODO: support drag-and-drop.
 197         connect(ui->playlist_move_up_btn, &QPushButton::clicked, [this] { playlist_move(-1); });
 198         connect(ui->playlist_move_down_btn, &QPushButton::clicked, [this] { playlist_move(1); });
 199
 200         connect(ui->playlist->selectionModel(), &QItemSelectionModel::selectionChanged,
 201                 this, &MainWindow::playlist_selection_changed);
 202         playlist_selection_changed();  // First time set-up.
 203
 204         preview_player.reset(new Player(ui->preview_display, Player::NO_STREAM_OUTPUT));
 205         live_player.reset(new Player(ui->live_display, Player::HTTPD_STREAM_OUTPUT));
 206         live_player->set_done_callback([this] {
 207                 post_to_main_thread([this] {
 208                         live_player_done();
 209                 });
 210         });
 211         live_player->set_progress_callback([this](const map<uint64_t, double> &progress, double time_remaining) {
 212                 post_to_main_thread([this, progress, time_remaining] {
 213                         live_player_clip_progress(progress, time_remaining);
 214                 });
 215         });
 216         set_output_status("paused");
 217         enable_or_disable_queue_button();
 218
 219         defer_timeout = new QTimer(this);
 220         defer_timeout->setSingleShot(true);
 221         connect(defer_timeout, &QTimer::timeout, this, &MainWindow::defer_timer_expired);
 222         ui->undo_action->setEnabled(true);
 223
 224         connect(ui->clip_list->selectionModel(), &QItemSelectionModel::currentChanged,
 225                 this, &MainWindow::clip_list_selection_changed);
 226         enable_or_disable_queue_button();
 227
 228         // Find out how many cameras we have in the existing frames;
 229         // if none, we start with two cameras.
 230         num_cameras = 2;
 231         {
 232                 lock_guard<mutex> lock(frame_mu);
 233                 for (size_t stream_idx = 2; stream_idx < MAX_STREAMS; ++stream_idx) {
 234                         if (!frames[stream_idx].empty()) {
 235                                 num_cameras = stream_idx + 1;
 236                         }
 237                 }
 238         }
 239         change_num_cameras();
 240
 241         if (!global_flags.tally_url.empty()) {
 242                 start_tally();
 243         }
 244
 245         if (!global_flags.midi_mapping_filename.empty()) {
 246                 MIDIMappingProto midi_mapping;
 247                 if (!load_midi_mapping_from_file(global_flags.midi_mapping_filename, &midi_mapping)) {
 248                         fprintf(stderr, "Couldn't load MIDI mapping '%s'; exiting.\n",
 249                                 global_flags.midi_mapping_filename.c_str());
 250                         exit(1);
 251                 }
 252                 midi_mapper.set_midi_mapping(midi_mapping);
 253         }
 254         midi_mapper.refresh_lights();
 255         midi_mapper.start_thread();
 256 }
 257
 258 void MainWindow::change_num_cameras()
 259 {
 260         assert(num_cameras >= displays.size());  // We only add, never remove.
 261
 262         // Make new display rows.
 263         unsigned display_rows = (num_cameras + 1) / 2;
 264         ui->video_displays->setStretch(1, display_rows);
 265         for (unsigned i = displays.size(); i < num_cameras; ++i) {
 266                 QFrame *frame = new QFrame(this);
 267                 frame->setAutoFillBackground(true);
 268
 269                 QLayout *layout = new QGridLayout(frame);
 270                 frame->setLayout(layout);
 271                 layout->setContentsMargins(3, 3, 3, 3);
 272
 273                 JPEGFrameView *display = new JPEGFrameView(frame);
 274                 display->setAutoFillBackground(true);
 275                 layout->addWidget(display);
 276
 277                 ui->input_displays->addWidget(frame, i / 2, i % 2);
 278                 display->set_overlay(to_string(i + 1));
 279
 280                 QPushButton *preview_btn = new QPushButton(this);
 281                 preview_btn->setMaximumSize(20, 17);
 282                 preview_btn->setText(QString::fromStdString(to_string(i + 1)));
 283                 ui->preview_layout->addWidget(preview_btn);
 284
 285                 displays.emplace_back(FrameAndDisplay{ frame, display, preview_btn });
 286
 287                 connect(display, &JPEGFrameView::clicked, preview_btn, &QPushButton::click);
 288                 QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
 289                 connect(shortcut, &QShortcut::activated, preview_btn, &QPushButton::click);
 290
 291                 connect(preview_btn, &QPushButton::clicked, [this, i] { preview_angle_clicked(i); });
 292         }
 293
 294         cliplist_clips->change_num_cameras(num_cameras);
 295         playlist_clips->change_num_cameras(num_cameras);
 296
 297         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 298 }
 299
 300 MainWindow::~MainWindow()
 301 {
 302         // Empty so that we can forward-declare Player in the .h file.
 303 }
 304
 305 void MainWindow::cue_in_clicked()
 306 {
 307         if (!cliplist_clips->empty() && cliplist_clips->back()->pts_out < 0) {
 308                 cliplist_clips->mutable_back()->pts_in = current_pts;
 309         } else {
 310                 Clip clip;
 311                 clip.pts_in = max<int64_t>(current_pts - lrint(global_flags.cue_point_padding_seconds * TIMEBASE), 0);
 312                 cliplist_clips->add_clip(clip);
 313                 playlist_selection_changed();
 314         }
 315
 316         // Select the item so that we can jog it.
 317         ui->clip_list->setFocus();
 318         QModelIndex index = cliplist_clips->index(cliplist_clips->size() - 1, int(ClipList::Column::IN));
 319         ui->clip_list->selectionModel()->setCurrentIndex(index, QItemSelectionModel::ClearAndSelect);
 320         ui->clip_list->scrollToBottom();
 321         enable_or_disable_queue_button();
 322 }
 323
 324 void MainWindow::cue_out_clicked()
 325 {
 326         if (cliplist_clips->empty()) {
 327                 return;
 328         }
 329
 330         cliplist_clips->mutable_back()->pts_out = current_pts + lrint(global_flags.cue_point_padding_seconds * TIMEBASE);
 331
 332         // Select the item so that we can jog it.
 333         ui->clip_list->setFocus();
 334         QModelIndex index = cliplist_clips->index(cliplist_clips->size() - 1, int(ClipList::Column::OUT));
 335         ui->clip_list->selectionModel()->setCurrentIndex(index, QItemSelectionModel::ClearAndSelect);
 336         ui->clip_list->scrollToBottom();
 337         enable_or_disable_queue_button();
 338 }
 339
 340 void MainWindow::queue_clicked()
 341 {
 342         // See also enable_or_disable_queue_button().
 343
 344         if (cliplist_clips->empty()) {
 345                 return;
 346         }
 347
 348         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 349         if (!selected->hasSelection()) {
 350                 Clip clip = *cliplist_clips->back();
 351                 clip.stream_idx = 0;
 352                 if (clip.pts_out != -1) {
 353                         playlist_clips->add_clip(clip);
 354                         playlist_selection_changed();
 355                         ui->playlist->scrollToBottom();
 356                 }
 357                 return;
 358         }
 359
 360         QModelIndex index = selected->currentIndex();
 361         Clip clip = *cliplist_clips->clip(index.row());
 362         if (cliplist_clips->is_camera_column(index.column())) {
 363                 clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 364         } else {
 365                 clip.stream_idx = ui->preview_display->get_stream_idx();
 366         }
 367
 368         if (clip.pts_out != -1) {
 369                 playlist_clips->add_clip(clip);
 370                 playlist_selection_changed();
 371                 ui->playlist->scrollToBottom();
 372                 if (!ui->playlist->selectionModel()->hasSelection()) {
 373                         // TODO: Figure out why this doesn't always seem to actually select the row.
 374                         QModelIndex bottom = playlist_clips->index(playlist_clips->size() - 1, 0);
 375                         ui->playlist->setCurrentIndex(bottom);
 376                 }
 377         }
 378 }
 379
 380 void MainWindow::preview_clicked()
 381 {
 382         // See also enable_or_disable_preview_button().
 383
 384         if (ui->playlist->hasFocus()) {
 385                 // Allow the playlist as preview iff it has focus and something is selected.
 386                 QItemSelectionModel *selected = ui->playlist->selectionModel();
 387                 if (selected->hasSelection()) {
 388                         QModelIndex index = selected->currentIndex();
 389                         const Clip &clip = *playlist_clips->clip(index.row());
 390                         preview_player->play(clip);
 391                         return;
 392                 }
 393         }
 394
 395         if (cliplist_clips->empty())
 396                 return;
 397
 398         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 399         if (!selected->hasSelection()) {
 400                 preview_player->play(*cliplist_clips->back());
 401                 return;
 402         }
 403
 404         QModelIndex index = selected->currentIndex();
 405         Clip clip = *cliplist_clips->clip(index.row());
 406         if (cliplist_clips->is_camera_column(index.column())) {
 407                 clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 408         } else {
 409                 clip.stream_idx = ui->preview_display->get_stream_idx();
 410         }
 411         preview_player->play(clip);
 412 }
 413
 414 void MainWindow::preview_angle_clicked(unsigned stream_idx)
 415 {
 416         preview_player->override_angle(stream_idx);
 417
 418         // Change the selection if we were previewing a clip from the clip list.
 419         // (The only other thing we could be showing is a pts scrub, and if so,
 420         // that would be selected.)
 421         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 422         if (selected->hasSelection()) {
 423                 QModelIndex cell = selected->selectedIndexes()[0];
 424                 int column = int(ClipList::Column::CAMERA_1) + stream_idx;
 425                 selected->setCurrentIndex(cell.sibling(cell.row(), column), QItemSelectionModel::ClearAndSelect);
 426         }
 427 }
 428
 429 void MainWindow::playlist_duplicate()
 430 {
 431         QItemSelectionModel *selected = ui->playlist->selectionModel();
 432         if (!selected->hasSelection()) {
 433                 // Should have been grayed out, but OK.
 434                 return;
 435         }
 436         QModelIndexList rows = selected->selectedRows();
 437         int first = rows.front().row(), last = rows.back().row();
 438         playlist_clips->duplicate_clips(first, last);
 439         playlist_selection_changed();
 440 }
 441
 442 void MainWindow::playlist_remove()
 443 {
 444         QItemSelectionModel *selected = ui->playlist->selectionModel();
 445         if (!selected->hasSelection()) {
 446                 // Should have been grayed out, but OK.
 447                 return;
 448         }
 449         QModelIndexList rows = selected->selectedRows();
 450         int first = rows.front().row(), last = rows.back().row();
 451         playlist_clips->erase_clips(first, last);
 452
 453         // TODO: select the next one in the list?
 454
 455         playlist_selection_changed();
 456 }
 457
 458 void MainWindow::playlist_move(int delta)
 459 {
 460         QItemSelectionModel *selected = ui->playlist->selectionModel();
 461         if (!selected->hasSelection()) {
 462                 // Should have been grayed out, but OK.
 463                 return;
 464         }
 465
 466         QModelIndexList rows = selected->selectedRows();
 467         int first = rows.front().row(), last = rows.back().row();
 468         if ((delta == -1 && first == 0) ||
 469             (delta == 1 && size_t(last) == playlist_clips->size() - 1)) {
 470                 // Should have been grayed out, but OK.
 471                 return;
 472         }
 473
 474         playlist_clips->move_clips(first, last, delta);
 475         playlist_selection_changed();
 476 }
 477
 478 void MainWindow::jog_internal(JogDestination jog_destination, int row, int column, int stream_idx, int pts_delta)
 479 {
 480         constexpr int camera_pts_per_pixel = 1500;  // One click of most mice (15 degrees), multiplied by the default wheel_sensitivity.
 481
 482         int in_column, out_column, camera_column;
 483         if (jog_destination == JOG_CLIP_LIST) {
 484                 in_column = int(ClipList::Column::IN);
 485                 out_column = int(ClipList::Column::OUT);
 486                 camera_column = -1;
 487         } else if (jog_destination == JOG_PLAYLIST) {
 488                 in_column = int(PlayList::Column::IN);
 489                 out_column = int(PlayList::Column::OUT);
 490                 camera_column = int(PlayList::Column::CAMERA);
 491         } else {
 492                 assert(false);
 493         }
 494
 495         currently_deferring_model_changes = true;
 496         {
 497                 current_change_id = (jog_destination == JOG_CLIP_LIST) ? "cliplist:" : "playlist:";
 498                 ClipProxy clip = (jog_destination == JOG_CLIP_LIST) ? cliplist_clips->mutable_clip(row) : playlist_clips->mutable_clip(row);
 499                 if (jog_destination == JOG_PLAYLIST) {
 500                         stream_idx = clip->stream_idx;
 501                 }
 502
 503                 if (column == in_column) {
 504                         current_change_id += "in:" + to_string(row);
 505                         int64_t pts = clip->pts_in + pts_delta;
 506                         set_pts_in(pts, current_pts, clip);
 507                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 508                 } else if (column == out_column) {
 509                         current_change_id += "out:" + to_string(row);
 510                         int64_t pts = clip->pts_out + pts_delta;
 511                         pts = std::max(pts, clip->pts_in);
 512                         pts = std::min(pts, current_pts);
 513                         clip->pts_out = pts;
 514                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 515                 } else if (column == camera_column) {
 516                         current_change_id += "camera:" + to_string(row);
 517                         int angle_degrees = pts_delta;
 518                         if (last_mousewheel_camera_row == row) {
 519                                 angle_degrees += leftover_angle_degrees;
 520                         }
 521
 522                         int stream_idx = clip->stream_idx + angle_degrees / camera_pts_per_pixel;
 523                         stream_idx = std::max(stream_idx, 0);
 524                         stream_idx = std::min<int>(stream_idx, num_cameras - 1);
 525                         clip->stream_idx = stream_idx;
 526
 527                         last_mousewheel_camera_row = row;
 528                         leftover_angle_degrees = angle_degrees % camera_pts_per_pixel;
 529
 530                         // Don't update the live view, that's rarely what the operator wants.
 531                 }
 532         }
 533         currently_deferring_model_changes = false;
 534 }
 535
 536 void MainWindow::defer_timer_expired()
 537 {
 538         state_changed(deferred_state);
 539 }
 540
 541 void MainWindow::content_changed()
 542 {
 543         // If we are playing, update the part of the playlist that's not playing yet.
 544         vector<ClipWithID> clips;
 545         for (unsigned row = 0; row < playlist_clips->size(); ++row) {
 546                 clips.emplace_back(*playlist_clips->clip_with_id(row));
 547         }
 548         live_player->splice_play(clips);
 549
 550         // Serialize the state.
 551         if (defer_timeout->isActive() &&
 552             (!currently_deferring_model_changes || deferred_change_id != current_change_id)) {
 553                 // There's some deferred event waiting, but this event is unrelated.
 554                 // So it's time to short-circuit that timer and do the work it wanted to do.
 555                 defer_timeout->stop();
 556                 state_changed(deferred_state);
 557         }
 558         StateProto state;
 559         *state.mutable_clip_list() = cliplist_clips->serialize();
 560         *state.mutable_play_list() = playlist_clips->serialize();
 561         if (currently_deferring_model_changes) {
 562                 deferred_change_id = current_change_id;
 563                 deferred_state = std::move(state);
 564                 defer_timeout->start(200);
 565                 return;
 566         }
 567         state_changed(state);
 568 }
 569
 570 void MainWindow::state_changed(const StateProto &state)
 571 {
 572         db.store_state(state);
 573
 574         redo_stack.clear();
 575         ui->redo_action->setEnabled(false);
 576
 577         undo_stack.push_back(state);
 578         ui->undo_action->setEnabled(undo_stack.size() > 1);
 579
 580         // Make sure it doesn't grow without bounds.
 581         while (undo_stack.size() >= 100) {
 582                 undo_stack.pop_front();
 583         }
 584 }
 585
 586 void MainWindow::save_settings()
 587 {
 588         SettingsProto settings;
 589         settings.set_interpolation_quality(global_flags.interpolation_quality + 1);
 590         settings.set_cue_point_padding_seconds(global_flags.cue_point_padding_seconds);
 591         db.store_settings(settings);
 592 }
 593
 594 void MainWindow::play_clicked()
 595 {
 596         if (playlist_clips->empty())
 597                 return;
 598
 599         QItemSelectionModel *selected = ui->playlist->selectionModel();
 600         unsigned start_row;
 601         if (!selected->hasSelection()) {
 602                 start_row = 0;
 603         } else {
 604                 start_row = selected->selectedRows(0)[0].row();
 605         }
 606
 607         vector<ClipWithID> clips;
 608         for (unsigned row = start_row; row < playlist_clips->size(); ++row) {
 609                 clips.emplace_back(*playlist_clips->clip_with_id(row));
 610         }
 611         live_player->play(clips);
 612         playlist_clips->set_progress({ { start_row, 0.0f } });
 613         ui->playlist->selectionModel()->clear();
 614         playlist_selection_changed();
 615
 616         ui->stop_btn->setEnabled(true);
 617 }
 618
 619 void MainWindow::stop_clicked()
 620 {
 621         Clip fake_clip;
 622         fake_clip.pts_in = 0;
 623         fake_clip.pts_out = 0;
 624         playlist_clips->set_progress({});
 625         live_player->play(fake_clip);
 626         ui->stop_btn->setEnabled(false);
 627 }
 628
 629 void MainWindow::speed_slider_changed(int percent)
 630 {
 631         float speed = percent / 100.0f;
 632         ui->speed_label->setText(QString::fromStdString(to_string(percent) + "%"));
 633         live_player->set_master_speed(speed);
 634 }
 635
 636 void MainWindow::live_player_done()
 637 {
 638         playlist_selection_changed();
 639         playlist_clips->set_progress({});
 640         ui->stop_btn->setEnabled(false);
 641 }
 642
 643 void MainWindow::live_player_clip_progress(const map<uint64_t, double> &progress, double time_remaining)
 644 {
 645         playlist_clips->set_progress(progress);
 646         set_output_status(format_duration(time_remaining) + " left");
 647 }
 648
 649 void MainWindow::resizeEvent(QResizeEvent *event)
 650 {
 651         QMainWindow::resizeEvent(event);
 652
 653         // Ask for a relayout, but only after the event loop is done doing relayout
 654         // on everything else.
 655         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 656 }
 657
 658 void MainWindow::relayout()
 659 {
 660         ui->live_display->setMinimumWidth(ui->live_display->height() * 16 / 9);
 661         ui->preview_display->setMinimumWidth(ui->preview_display->height() * 16 / 9);
 662 }
 663
 664 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 665 {
 666         constexpr int dead_zone_pixels = 3;  // To avoid that simple clicks get misinterpreted.
 667         int scrub_sensitivity = 100;  // pts units per pixel.
 668         int wheel_sensitivity = 100;  // pts units per degree.
 669
 670         if (event->type() == QEvent::FocusIn || event->type() == QEvent::FocusOut) {
 671                 enable_or_disable_preview_button();
 672                 hidden_jog_column = -1;
 673         }
 674
 675         unsigned stream_idx = ui->preview_display->get_stream_idx();
 676
 677         if (watched == ui->clip_list) {
 678                 if (event->type() == QEvent::FocusOut) {
 679                         highlight_camera_input(-1);
 680                 }
 681                 return false;
 682         }
 683
 684         if (event->type() != QEvent::Wheel) {
 685                 last_mousewheel_camera_row = -1;
 686         }
 687
 688         if (event->type() == QEvent::MouseButtonPress) {
 689                 QMouseEvent *mouse = (QMouseEvent *)event;
 690
 691                 QTableView *destination;
 692                 ScrubType type;
 693
 694                 if (watched == ui->clip_list->viewport()) {
 695                         destination = ui->clip_list;
 696                         type = SCRUBBING_CLIP_LIST;
 697                 } else if (watched == ui->playlist->viewport()) {
 698                         destination = ui->playlist;
 699                         type = SCRUBBING_PLAYLIST;
 700                 } else {
 701                         return false;
 702                 }
 703                 int column = destination->columnAt(mouse->x());
 704                 int row = destination->rowAt(mouse->y());
 705                 if (column == -1 || row == -1)
 706                         return false;
 707
 708                 if (type == SCRUBBING_CLIP_LIST) {
 709                         if (ClipList::Column(column) == ClipList::Column::IN) {
 710                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_in;
 711                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 712                         } else if (ClipList::Column(column) == ClipList::Column::OUT) {
 713                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_out;
 714                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 715                         } else {
 716                                 return false;
 717                         }
 718                 } else {
 719                         if (PlayList::Column(column) == PlayList::Column::IN) {
 720                                 scrub_pts_origin = playlist_clips->clip(row)->pts_in;
 721                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 722                         } else if (PlayList::Column(column) == PlayList::Column::OUT) {
 723                                 scrub_pts_origin = playlist_clips->clip(row)->pts_out;
 724                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 725                         } else {
 726                                 return false;
 727                         }
 728                 }
 729
 730                 scrubbing = true;
 731                 scrub_row = row;
 732                 scrub_column = column;
 733                 scrub_x_origin = mouse->x();
 734                 scrub_type = type;
 735         } else if (event->type() == QEvent::MouseMove) {
 736                 QMouseEvent *mouse = (QMouseEvent *)event;
 737                 if (mouse->modifiers() & Qt::KeyboardModifier::ShiftModifier) {
 738                         scrub_sensitivity *= 10;
 739                         wheel_sensitivity *= 10;
 740                 }
 741                 if (mouse->modifiers() & Qt::KeyboardModifier::AltModifier) {  // Note: Shift + Alt cancel each other out.
 742                         scrub_sensitivity /= 10;
 743                         wheel_sensitivity /= 10;
 744                 }
 745                 if (scrubbing) {
 746                         int offset = mouse->x() - scrub_x_origin;
 747                         int adjusted_offset;
 748                         if (offset >= dead_zone_pixels) {
 749                                 adjusted_offset = offset - dead_zone_pixels;
 750                         } else if (offset < -dead_zone_pixels) {
 751                                 adjusted_offset = offset + dead_zone_pixels;
 752                         } else {
 753                                 adjusted_offset = 0;
 754                         }
 755
 756                         int64_t pts = scrub_pts_origin + adjusted_offset * scrub_sensitivity;
 757                         currently_deferring_model_changes = true;
 758                         if (scrub_type == SCRUBBING_CLIP_LIST) {
 759                                 ClipProxy clip = cliplist_clips->mutable_clip(scrub_row);
 760                                 if (scrub_column == int(ClipList::Column::IN)) {
 761                                         current_change_id = "cliplist:in:" + to_string(scrub_row);
 762                                         set_pts_in(pts, current_pts, clip);
 763                                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 764                                 } else {
 765                                         current_change_id = "cliplist:out" + to_string(scrub_row);
 766                                         pts = std::max(pts, clip->pts_in);
 767                                         pts = std::min(pts, current_pts);
 768                                         clip->pts_out = pts;
 769                                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 770                                 }
 771                         } else {
 772                                 ClipProxy clip = playlist_clips->mutable_clip(scrub_row);
 773                                 if (scrub_column == int(PlayList::Column::IN)) {
 774                                         current_change_id = "playlist:in:" + to_string(scrub_row);
 775                                         set_pts_in(pts, current_pts, clip);
 776                                         preview_single_frame(pts, clip->stream_idx, FIRST_AT_OR_AFTER);
 777                                 } else {
 778                                         current_change_id = "playlist:out:" + to_string(scrub_row);
 779                                         pts = std::max(pts, clip->pts_in);
 780                                         pts = std::min(pts, current_pts);
 781                                         clip->pts_out = pts;
 782                                         preview_single_frame(pts, clip->stream_idx, LAST_BEFORE);
 783                                 }
 784                         }
 785                         currently_deferring_model_changes = false;
 786
 787                         return true;  // Don't use this mouse movement for selecting things.
 788                 }
 789         } else if (event->type() == QEvent::Wheel) {
 790                 QWheelEvent *wheel = (QWheelEvent *)event;
 791                 int angle_delta = wheel->angleDelta().y();
 792                 if (wheel->modifiers() & Qt::KeyboardModifier::ShiftModifier) {
 793                         scrub_sensitivity *= 10;
 794                         wheel_sensitivity *= 10;
 795                 }
 796                 if (wheel->modifiers() & Qt::KeyboardModifier::AltModifier) {  // Note: Shift + Alt cancel each other out.
 797                         scrub_sensitivity /= 10;
 798                         wheel_sensitivity /= 10;
 799                         angle_delta = wheel->angleDelta().x();  // Qt ickiness.
 800                 }
 801
 802                 QTableView *destination;
 803                 JogDestination jog_destination;
 804                 if (watched == ui->clip_list->viewport()) {
 805                         destination = ui->clip_list;
 806                         jog_destination = JOG_CLIP_LIST;
 807                         last_mousewheel_camera_row = -1;
 808                 } else if (watched == ui->playlist->viewport()) {
 809                         destination = ui->playlist;
 810                         jog_destination = JOG_PLAYLIST;
 811                         if (destination->columnAt(wheel->x()) != int(PlayList::Column::CAMERA)) {
 812                                 last_mousewheel_camera_row = -1;
 813                         }
 814                 } else {
 815                         last_mousewheel_camera_row = -1;
 816                         return false;
 817                 }
 818
 819                 int column = destination->columnAt(wheel->x());
 820                 int row = destination->rowAt(wheel->y());
 821                 if (column == -1 || row == -1)
 822                         return false;
 823
 824                 // Only adjust pts with the wheel if the given row is selected.
 825                 if (!destination->hasFocus() ||
 826                     row != destination->selectionModel()->currentIndex().row()) {
 827                         return false;
 828                 }
 829
 830                 jog_internal(jog_destination, row, column, stream_idx, angle_delta * wheel_sensitivity);
 831                 return true;  // Don't scroll.
 832         } else if (event->type() == QEvent::MouseButtonRelease) {
 833                 scrubbing = false;
 834         }
 835         return false;
 836 }
 837
 838 void MainWindow::preview_single_frame(int64_t pts, unsigned stream_idx, MainWindow::Rounding rounding)
 839 {
 840         if (rounding == LAST_BEFORE) {
 841                 lock_guard<mutex> lock(frame_mu);
 842                 if (frames[stream_idx].empty())
 843                         return;
 844                 auto it = find_last_frame_before(frames[stream_idx], pts);
 845                 if (it != frames[stream_idx].end()) {
 846                         pts = it->pts;
 847                 }
 848         } else {
 849                 assert(rounding == FIRST_AT_OR_AFTER);
 850                 lock_guard<mutex> lock(frame_mu);
 851                 if (frames[stream_idx].empty())
 852                         return;
 853                 auto it = find_first_frame_at_or_after(frames[stream_idx], pts);
 854                 if (it != frames[stream_idx].end()) {
 855                         pts = it->pts;
 856                 }
 857         }
 858
 859         Clip fake_clip;
 860         fake_clip.pts_in = pts;
 861         fake_clip.pts_out = pts + 1;
 862         fake_clip.stream_idx = stream_idx;
 863         preview_player->play(fake_clip);
 864 }
 865
 866 void MainWindow::playlist_selection_changed()
 867 {
 868         enable_or_disable_preview_button();
 869
 870         QItemSelectionModel *selected = ui->playlist->selectionModel();
 871         bool any_selected = selected->hasSelection();
 872         ui->playlist_duplicate_btn->setEnabled(any_selected);
 873         ui->playlist_remove_btn->setEnabled(any_selected);
 874         ui->playlist_move_up_btn->setEnabled(
 875                 any_selected && selected->selectedRows().front().row() > 0);
 876         ui->playlist_move_down_btn->setEnabled(
 877                 any_selected && selected->selectedRows().back().row() < int(playlist_clips->size()) - 1);
 878
 879         ui->play_btn->setEnabled(!playlist_clips->empty());
 880         midi_mapper.set_play_enabled(!playlist_clips->empty());
 881
 882         if (!any_selected) {
 883                 set_output_status("paused");
 884         } else {
 885                 vector<ClipWithID> clips;
 886                 for (size_t row = selected->selectedRows().front().row(); row < playlist_clips->size(); ++row) {
 887                         clips.emplace_back(*playlist_clips->clip_with_id(row));
 888                 }
 889                 double remaining = compute_total_time(clips);
 890                 set_output_status(format_duration(remaining) + " ready");
 891         }
 892 }
 893
 894 void MainWindow::clip_list_selection_changed(const QModelIndex &current, const QModelIndex &previous)
 895 {
 896         int camera_selected = -1;
 897         if (cliplist_clips->is_camera_column(current.column())) {
 898                 camera_selected = current.column() - int(ClipList::Column::CAMERA_1);
 899
 900                 // See the comment on hidden_jog_column.
 901                 if (current.row() != previous.row()) {
 902                         hidden_jog_column = -1;
 903                 } else if (hidden_jog_column == -1) {
 904                         hidden_jog_column = previous.column();
 905                 }
 906         } else {
 907                 hidden_jog_column = -1;
 908         }
 909         highlight_camera_input(camera_selected);
 910         enable_or_disable_queue_button();
 911 }
 912
 913 void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_left)
 914 {
 915         char time_str[256];
 916         if (estimated_seconds_left < 60.0) {
 917                 strcpy(time_str, "<font color=\"red\">Less than a minute</font>");
 918         } else if (estimated_seconds_left < 1800.0) {  // Less than half an hour: Xm Ys (red).
 919                 int s = lrintf(estimated_seconds_left);
 920                 int m = s / 60;
 921                 s %= 60;
 922                 snprintf(time_str, sizeof(time_str), "<font color=\"red\">%dm %ds</font>", m, s);
 923         } else if (estimated_seconds_left < 3600.0) {  // Less than an hour: Xm.
 924                 int m = lrintf(estimated_seconds_left / 60.0);
 925                 snprintf(time_str, sizeof(time_str), "%dm", m);
 926         } else if (estimated_seconds_left < 36000.0) {  // Less than ten hours: Xh Ym.
 927                 int m = lrintf(estimated_seconds_left / 60.0);
 928                 int h = m / 60;
 929                 m %= 60;
 930                 snprintf(time_str, sizeof(time_str), "%dh %dm", h, m);
 931         } else {  // More than ten hours: Xh.
 932                 int h = lrintf(estimated_seconds_left / 3600.0);
 933                 snprintf(time_str, sizeof(time_str), "%dh", h);
 934         }
 935         char buf[256];
 936         snprintf(buf, sizeof(buf), "Disk free: %'.0f MB (approx. %s)", free_bytes / 1048576.0, time_str);
 937
 938         std::string label = buf;
 939
 940         post_to_main_thread([this, label] {
 941                 disk_free_label->setText(QString::fromStdString(label));
 942                 ui->menuBar->setCornerWidget(disk_free_label);  // Need to set this again for the sizing to get right.
 943         });
 944 }
 945
 946 void MainWindow::exit_triggered()
 947 {
 948         close();
 949 }
 950
 951 void MainWindow::export_cliplist_clip_multitrack_triggered()
 952 {
 953         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 954         if (!selected->hasSelection()) {
 955                 QMessageBox msgbox;
 956                 msgbox.setText("No clip selected in the clip list. Select one and try exporting again.");
 957                 msgbox.exec();
 958                 return;
 959         }
 960
 961         QModelIndex index = selected->currentIndex();
 962         Clip clip = *cliplist_clips->clip(index.row());
 963         QString filename = QFileDialog::getSaveFileName(this,
 964                 "Export multitrack clip", QString(), tr("Matroska video files (*.mkv)"));
 965         if (filename.isNull()) {
 966                 // Cancel.
 967                 return;
 968         }
 969         if (!filename.endsWith(".mkv")) {
 970                 filename += ".mkv";
 971         }
 972         export_multitrack_clip(filename.toStdString(), clip);
 973 }
 974
 975 void MainWindow::export_playlist_clip_interpolated_triggered()
 976 {
 977         QItemSelectionModel *selected = ui->playlist->selectionModel();
 978         if (!selected->hasSelection()) {
 979                 QMessageBox msgbox;
 980                 msgbox.setText("No clip selected in the playlist. Select one and try exporting again.");
 981                 msgbox.exec();
 982                 return;
 983         }
 984
 985         QString filename = QFileDialog::getSaveFileName(this,
 986                 "Export interpolated clip", QString(), tr("Matroska video files (*.mkv)"));
 987         if (filename.isNull()) {
 988                 // Cancel.
 989                 return;
 990         }
 991         if (!filename.endsWith(".mkv")) {
 992                 filename += ".mkv";
 993         }
 994
 995         vector<Clip> clips;
 996         QModelIndexList rows = selected->selectedRows();
 997         for (QModelIndex index : rows) {
 998                 clips.push_back(*playlist_clips->clip(index.row()));
 999         }
1000         export_interpolated_clip(filename.toStdString(), clips);
1001 }
1002
1003 void MainWindow::manual_triggered()
1004 {
1005         if (!QDesktopServices::openUrl(QUrl("https://nageru.sesse.net/doc/"))) {
1006                 QMessageBox msgbox;
1007                 msgbox.setText("Could not launch manual in web browser.\nPlease see https://nageru.sesse.net/doc/ manually.");
1008                 msgbox.exec();
1009         }
1010 }
1011
1012 void MainWindow::about_triggered()
1013 {
1014         AboutDialog("Futatabi", "Multicamera slow motion video server").exec();
1015 }
1016
1017 void MainWindow::undo_triggered()
1018 {
1019         // Finish any deferred action.
1020         if (defer_timeout->isActive()) {
1021                 defer_timeout->stop();
1022                 state_changed(deferred_state);
1023         }
1024
1025         StateProto redo_state;
1026         *redo_state.mutable_clip_list() = cliplist_clips->serialize();
1027         *redo_state.mutable_play_list() = playlist_clips->serialize();
1028         redo_stack.push_back(std::move(redo_state));
1029         ui->redo_action->setEnabled(true);
1030
1031         assert(undo_stack.size() > 1);
1032
1033         // Pop off the current state, which is always at the top of the stack.
1034         undo_stack.pop_back();
1035
1036         StateProto state = undo_stack.back();
1037         ui->undo_action->setEnabled(undo_stack.size() > 1);
1038
1039         replace_model(ui->clip_list, &cliplist_clips, new ClipList(state.clip_list()));
1040         replace_model(ui->playlist, &playlist_clips, new PlayList(state.play_list()));
1041
1042         db.store_state(state);
1043 }
1044
1045 void MainWindow::redo_triggered()
1046 {
1047         assert(!redo_stack.empty());
1048
1049         ui->undo_action->setEnabled(true);
1050         ui->redo_action->setEnabled(true);
1051
1052         undo_stack.push_back(std::move(redo_stack.back()));
1053         redo_stack.pop_back();
1054         ui->undo_action->setEnabled(true);
1055         ui->redo_action->setEnabled(!redo_stack.empty());
1056
1057         const StateProto &state = undo_stack.back();
1058         replace_model(ui->clip_list, &cliplist_clips, new ClipList(state.clip_list()));
1059         replace_model(ui->playlist, &playlist_clips, new PlayList(state.play_list()));
1060
1061         db.store_state(state);
1062 }
1063
1064 void MainWindow::quality_toggled(int quality, bool checked)
1065 {
1066         if (!checked) {
1067                 return;
1068         }
1069         global_flags.interpolation_quality = quality;
1070         if (quality != 0 &&  // Turning interpolation off is always possible.
1071             quality != flow_initialized_interpolation_quality) {
1072                 QMessageBox msgbox;
1073                 msgbox.setText(QString::fromStdString(
1074                         "The interpolation quality for the main output cannot be changed at runtime, "
1075                         "except being turned completely off; it will take effect for exported files "
1076                         "only until next restart. The live output quality thus remains at " +
1077                         to_string(flow_initialized_interpolation_quality) + "."));
1078                 msgbox.exec();
1079         }
1080
1081         save_settings();
1082 }
1083
1084 void MainWindow::padding_toggled(double seconds, bool checked)
1085 {
1086         if (!checked) {
1087                 return;
1088         }
1089         global_flags.cue_point_padding_seconds = seconds;
1090         save_settings();
1091 }
1092
1093 void MainWindow::highlight_camera_input(int stream_idx)
1094 {
1095         for (unsigned i = 0; i < num_cameras; ++i) {
1096                 if (unsigned(stream_idx) == i) {
1097                         displays[i].frame->setStyleSheet("background: rgb(0,255,0)");
1098                 } else {
1099                         displays[i].frame->setStyleSheet("");
1100                 }
1101         }
1102         midi_mapper.highlight_camera_input(stream_idx);
1103 }
1104
1105 void MainWindow::enable_or_disable_preview_button()
1106 {
1107         // Follows the logic in preview_clicked().
1108
1109         if (ui->playlist->hasFocus()) {
1110                 // Allow the playlist as preview iff it has focus and something is selected.
1111                 // TODO: Is this part really relevant?
1112                 QItemSelectionModel *selected = ui->playlist->selectionModel();
1113                 if (selected->hasSelection()) {
1114                         ui->preview_btn->setEnabled(true);
1115                         midi_mapper.set_preview_enabled(true);
1116                         return;
1117                 }
1118         }
1119
1120         // TODO: Perhaps only enable this if something is actually selected.
1121         ui->preview_btn->setEnabled(!cliplist_clips->empty());
1122         midi_mapper.set_preview_enabled(!cliplist_clips->empty());
1123 }
1124
1125 void MainWindow::enable_or_disable_queue_button()
1126 {
1127         // Follows the logic in queue_clicked().
1128         // TODO: Perhaps only enable this if something is actually selected.
1129
1130         bool enabled;
1131
1132         if (cliplist_clips->empty()) {
1133                 enabled = false;
1134         } else {
1135                 QItemSelectionModel *selected = ui->clip_list->selectionModel();
1136                 if (!selected->hasSelection()) {
1137                         Clip clip = *cliplist_clips->back();
1138                         enabled = clip.pts_out != -1;
1139                 } else {
1140                         QModelIndex index = selected->currentIndex();
1141                         Clip clip = *cliplist_clips->clip(index.row());
1142                         enabled = clip.pts_out != -1;
1143                 }
1144         }
1145
1146         ui->queue_btn->setEnabled(enabled);
1147         midi_mapper.set_queue_enabled(enabled);
1148 }
1149
1150 void MainWindow::set_output_status(const string &status)
1151 {
1152         ui->live_label->setText(QString::fromStdString("Current output (" + status + ")"));
1153         if (live_player != nullptr) {
1154                 live_player->set_pause_status(status);
1155         }
1156
1157         lock_guard<mutex> lock(queue_status_mu);
1158         queue_status = status;
1159 }
1160
1161 pair<string, string> MainWindow::get_queue_status() const
1162 {
1163         lock_guard<mutex> lock(queue_status_mu);
1164         return { queue_status, "text/plain" };
1165 }
1166
1167 void MainWindow::display_frame(unsigned stream_idx, const FrameOnDisk &frame)
1168 {
1169         if (stream_idx >= MAX_STREAMS) {
1170                 fprintf(stderr, "WARNING: Ignoring too-high stream index %u.\n", stream_idx);
1171                 return;
1172         }
1173         if (stream_idx >= num_cameras) {
1174                 post_to_main_thread_and_wait([this, stream_idx] {
1175                         num_cameras = stream_idx + 1;
1176                         change_num_cameras();
1177                 });
1178         }
1179         displays[stream_idx].display->setFrame(stream_idx, frame);
1180 }
1181
1182 void MainWindow::preview()
1183 {
1184         post_to_main_thread([this] {
1185                 preview_clicked();
1186         });
1187 }
1188
1189 void MainWindow::queue()
1190 {
1191         post_to_main_thread([this] {
1192                 queue_clicked();
1193         });
1194 }
1195
1196 void MainWindow::play()
1197 {
1198         post_to_main_thread([this] {
1199                 play_clicked();
1200         });
1201 }
1202
1203 void MainWindow::jog(int delta)
1204 {
1205         post_to_main_thread([this, delta] {
1206                 int64_t pts_delta = delta * (TIMEBASE / 60);  // One click = frame at 60 fps.
1207                 if (ui->playlist->hasFocus()) {
1208                         QModelIndex selected = ui->playlist->selectionModel()->currentIndex();
1209                         if (selected.column() != -1 && selected.row() != -1) {
1210                                 jog_internal(JOG_PLAYLIST, selected.row(), selected.column(), /*stream_idx=*/-1, pts_delta);
1211                         }
1212                 } else if (ui->clip_list->hasFocus()) {
1213                         QModelIndex selected = ui->clip_list->selectionModel()->currentIndex();
1214                         if (cliplist_clips->is_camera_column(selected.column()) &&
1215                             hidden_jog_column != -1) {
1216                                 // See the definition on hidden_jog_column.
1217                                 selected = selected.sibling(selected.row(), hidden_jog_column);
1218                                 ui->clip_list->selectionModel()->setCurrentIndex(selected, QItemSelectionModel::ClearAndSelect);
1219                                 hidden_jog_column = -1;
1220                         }
1221                         if (selected.column() != -1 && selected.row() != -1) {
1222                                 jog_internal(JOG_CLIP_LIST, selected.row(), selected.column(), ui->preview_display->get_stream_idx(), pts_delta);
1223                         }
1224                 }
1225         });
1226 }
1227
1228 void MainWindow::switch_camera(unsigned camera_idx)
1229 {
1230         post_to_main_thread([this, camera_idx] {
1231                 if (camera_idx < num_cameras) {  // TODO: Also make this change a highlighted clip?
1232                         preview_angle_clicked(camera_idx);
1233                 }
1234         });
1235 }
1236
1237 void MainWindow::set_master_speed(float speed)
1238 {
1239         speed = min(max(speed, 0.1f), 2.0f);
1240
1241         post_to_main_thread([this, speed] {
1242                 int percent = lrintf(speed * 100.0f);
1243                 ui->speed_slider->blockSignals(true);
1244                 ui->speed_slider->setValue(percent);
1245                 ui->speed_slider->blockSignals(false);
1246                 ui->speed_label->setText(QString::fromStdString(to_string(percent) + "%"));
1247         });
1248
1249         live_player->set_master_speed(speed);
1250 }
1251
1252 void MainWindow::cue_in()
1253 {
1254         post_to_main_thread([this] { cue_in_clicked(); });
1255 }
1256
1257 void MainWindow::cue_out()
1258 {
1259         post_to_main_thread([this] { cue_out_clicked(); });
1260 }
1261
1262 template<class Model>
1263 void MainWindow::replace_model(QTableView *view, Model **model, Model *new_model)
1264 {
1265         QItemSelectionModel *old_selection_model = view->selectionModel();
1266         view->setModel(new_model);
1267         delete *model;
1268         delete old_selection_model;
1269         *model = new_model;
1270         connect(new_model, &Model::any_content_changed, this, &MainWindow::content_changed);
1271 }
1272
1273 void MainWindow::start_tally()
1274 {
1275         http_reply = http.get(QNetworkRequest(QString::fromStdString(global_flags.tally_url)));
1276         connect(http_reply, &QNetworkReply::finished, this, &MainWindow::tally_received);
1277 }
1278
1279 void MainWindow::tally_received()
1280 {
1281         unsigned time_to_next_tally_ms;
1282         if (http_reply->error()) {
1283                 fprintf(stderr, "HTTP get of '%s' failed: %s\n", global_flags.tally_url.c_str(),
1284                         http_reply->errorString().toStdString().c_str());
1285                 ui->live_frame->setStyleSheet("");
1286                 time_to_next_tally_ms = 1000;
1287         } else {
1288                 string contents = http_reply->readAll().toStdString();
1289                 ui->live_frame->setStyleSheet(QString::fromStdString("background: " + contents));
1290                 time_to_next_tally_ms = 100;
1291         }
1292         http_reply->deleteLater();
1293         http_reply = nullptr;
1294
1295         QTimer::singleShot(time_to_next_tally_ms, this, &MainWindow::start_tally);
1296 }