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

   1 #include "mainwindow.h"
   2
   3 #include "clip_list.h"
   4 #include "player.h"
   5 #include "post_to_main_thread.h"
   6 #include "ui_mainwindow.h"
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include <QMouseEvent>
  12 #include <QWheelEvent>
  13 #include <QShortcut>
  14
  15 using namespace std;
  16
  17 MainWindow *global_mainwindow = nullptr;
  18 ClipList *cliplist_clips;
  19 PlayList *playlist_clips;
  20
  21 extern int64_t current_pts;
  22 extern mutex frame_mu;
  23 extern vector<int64_t> frames[MAX_STREAMS];
  24
  25 MainWindow::MainWindow()
  26         : ui(new Ui::MainWindow)
  27 {
  28         global_mainwindow = this;
  29         ui->setupUi(this);
  30
  31         cliplist_clips = new ClipList();
  32         ui->clip_list->setModel(cliplist_clips);
  33
  34         playlist_clips = new PlayList();
  35         ui->playlist->setModel(playlist_clips);
  36
  37         // For scrubbing in the pts columns.
  38         ui->clip_list->viewport()->installEventFilter(this);
  39         ui->playlist->viewport()->installEventFilter(this);
  40
  41         QShortcut *cue_in = new QShortcut(QKeySequence(Qt::Key_A), this);
  42         connect(cue_in, &QShortcut::activated, ui->cue_in_btn, &QPushButton::click);
  43         connect(ui->cue_in_btn, &QPushButton::clicked, this, &MainWindow::cue_in_clicked);
  44
  45         QShortcut *cue_out = new QShortcut(QKeySequence(Qt::Key_S), this);
  46         connect(cue_out, &QShortcut::activated, ui->cue_out_btn, &QPushButton::click);
  47         connect(ui->cue_out_btn, &QPushButton::clicked, this, &MainWindow::cue_out_clicked);
  48
  49         QShortcut *queue = new QShortcut(QKeySequence(Qt::Key_Q), this);
  50         connect(queue, &QShortcut::activated, ui->queue_btn, &QPushButton::click);
  51         connect(ui->queue_btn, &QPushButton::clicked, this, &MainWindow::queue_clicked);
  52
  53         QShortcut *preview = new QShortcut(QKeySequence(Qt::Key_W), this);
  54         connect(preview, &QShortcut::activated, ui->preview_btn, &QPushButton::click);
  55         connect(ui->preview_btn, &QPushButton::clicked, this, &MainWindow::preview_clicked);
  56
  57         QShortcut *play = new QShortcut(QKeySequence(Qt::Key_Space), this);
  58         connect(play, &QShortcut::activated, ui->play_btn, &QPushButton::click);
  59         connect(ui->play_btn, &QPushButton::clicked, this, &MainWindow::play_clicked);
  60
  61         QShortcut *preview_1 = new QShortcut(QKeySequence(Qt::Key_1), this);
  62         connect(preview_1, &QShortcut::activated, ui->preview_1_btn, &QPushButton::click);
  63         connect(ui->input1_display, &JPEGFrameView::clicked, ui->preview_1_btn, &QPushButton::click);
  64         connect(ui->preview_1_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(0); });
  65         ui->input1_display->set_overlay("1");
  66
  67         QShortcut *preview_2 = new QShortcut(QKeySequence(Qt::Key_2), this);
  68         connect(preview_2, &QShortcut::activated, ui->preview_2_btn, &QPushButton::click);
  69         connect(ui->input2_display, &JPEGFrameView::clicked, ui->preview_2_btn, &QPushButton::click);
  70         connect(ui->preview_2_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(1); });
  71         ui->input2_display->set_overlay("2");
  72
  73         QShortcut *preview_3 = new QShortcut(QKeySequence(Qt::Key_3), this);
  74         connect(preview_3, &QShortcut::activated, ui->preview_3_btn, &QPushButton::click);
  75         connect(ui->input3_display, &JPEGFrameView::clicked, ui->preview_3_btn, &QPushButton::click);
  76         connect(ui->preview_3_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(2); });
  77         ui->input3_display->set_overlay("3");
  78
  79         QShortcut *preview_4 = new QShortcut(QKeySequence(Qt::Key_4), this);
  80         connect(preview_4, &QShortcut::activated, ui->preview_4_btn, &QPushButton::click);
  81         connect(ui->input4_display, &JPEGFrameView::clicked, ui->preview_4_btn, &QPushButton::click);
  82         connect(ui->preview_4_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(3); });
  83         ui->input4_display->set_overlay("4");
  84
  85         connect(ui->playlist_duplicate_btn, &QPushButton::clicked, this, &MainWindow::playlist_duplicate);
  86
  87         // TODO: support the delete key iff the widget has focus?
  88         connect(ui->playlist_remove_btn, &QPushButton::clicked, this, &MainWindow::playlist_remove);
  89
  90         // TODO: support drag-and-drop.
  91         connect(ui->playlist_move_up_btn, &QPushButton::clicked, [this]{ playlist_move(-1); });
  92         connect(ui->playlist_move_down_btn, &QPushButton::clicked, [this]{ playlist_move(1); });
  93
  94         connect(ui->playlist->selectionModel(), &QItemSelectionModel::selectionChanged,
  95                 this, &MainWindow::playlist_selection_changed);
  96         playlist_selection_changed();  // First time set-up.
  97
  98         preview_player = new Player(ui->preview_display, /*also_output_to_stream=*/false);
  99         live_player = new Player(ui->live_display, /*also_output_to_stream=*/true);
 100         live_player->set_done_callback([this]{
 101                 post_to_main_thread([this]{
 102                         live_player_clip_done();
 103                 });
 104         });
 105 }
 106
 107 void MainWindow::cue_in_clicked()
 108 {
 109         if (!cliplist_clips->empty() && cliplist_clips->back()->pts_out < 0) {
 110                 cliplist_clips->back()->pts_in = current_pts;
 111                 return;
 112         }
 113         Clip clip;
 114         clip.pts_in = current_pts;
 115         cliplist_clips->add_clip(clip);
 116         playlist_selection_changed();
 117 }
 118
 119 void MainWindow::cue_out_clicked()
 120 {
 121         if (!cliplist_clips->empty()) {
 122                 cliplist_clips->back()->pts_out = current_pts;
 123                 // TODO: select the row in the clip list?
 124         }
 125 }
 126
 127 void MainWindow::queue_clicked()
 128 {
 129         if (cliplist_clips->empty()) {
 130                 return;
 131         }
 132
 133         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 134         if (!selected->hasSelection()) {
 135                 Clip clip = *cliplist_clips->back();
 136                 clip.stream_idx = 0;
 137                 playlist_clips->add_clip(clip);
 138                 return;
 139         }
 140
 141         QModelIndex index = selected->currentIndex();
 142         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 143             index.column() <= int(ClipList::Column::CAMERA_4)) {
 144                 Clip clip = *cliplist_clips->clip(index.row());
 145                 clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 146                 playlist_clips->add_clip(clip);
 147                 playlist_selection_changed();
 148         }
 149 }
 150
 151 void MainWindow::preview_clicked()
 152 {
 153         if (cliplist_clips->empty()) return;
 154
 155         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 156         if (!selected->hasSelection()) {
 157                 preview_player->play_clip(*cliplist_clips->back(), 0);
 158                 return;
 159         }
 160
 161         QModelIndex index = selected->currentIndex();
 162         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 163             index.column() <= int(ClipList::Column::CAMERA_4)) {
 164                 unsigned stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 165                 preview_player->play_clip(*cliplist_clips->clip(index.row()), stream_idx);
 166         }
 167 }
 168
 169 void MainWindow::preview_angle_clicked(unsigned stream_idx)
 170 {
 171         preview_player->override_angle(stream_idx);
 172
 173         // Change the selection if we were previewing a clip from the clip list.
 174         // (The only other thing we could be showing is a pts scrub, and if so,
 175         // that would be selected.)
 176         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 177         if (selected->hasSelection()) {
 178                 QModelIndex cell = selected->selectedIndexes()[0];
 179                 int column = int(ClipList::Column::CAMERA_1) + stream_idx;
 180                 selected->setCurrentIndex(cell.sibling(cell.row(), column), QItemSelectionModel::ClearAndSelect);
 181         }
 182 }
 183
 184 void MainWindow::playlist_duplicate()
 185 {
 186         QItemSelectionModel *selected = ui->playlist->selectionModel();
 187         if (!selected->hasSelection()) {
 188                 // Should have been grayed out, but OK.
 189                 return;
 190         }
 191         QModelIndexList rows = selected->selectedRows();
 192         int first = rows.front().row(), last = rows.back().row();
 193         playlist_clips->duplicate_clips(first, last);
 194         playlist_selection_changed();
 195 }
 196
 197 void MainWindow::playlist_remove()
 198 {
 199         QItemSelectionModel *selected = ui->playlist->selectionModel();
 200         if (!selected->hasSelection()) {
 201                 // Should have been grayed out, but OK.
 202                 return;
 203         }
 204         QModelIndexList rows = selected->selectedRows();
 205         int first = rows.front().row(), last = rows.back().row();
 206         playlist_clips->erase_clips(first, last);
 207
 208         // TODO: select the next one in the list?
 209
 210         playlist_selection_changed();
 211 }
 212
 213 void MainWindow::playlist_move(int delta)
 214 {
 215         QItemSelectionModel *selected = ui->playlist->selectionModel();
 216         if (!selected->hasSelection()) {
 217                 // Should have been grayed out, but OK.
 218                 return;
 219         }
 220
 221         QModelIndexList rows = selected->selectedRows();
 222         int first = rows.front().row(), last = rows.back().row();
 223         if ((delta == -1 && first == 0) ||
 224             (delta == 1 && size_t(last) == playlist_clips->size() - 1)) {
 225                 // Should have been grayed out, but OK.
 226                 return;
 227         }
 228
 229         playlist_clips->move_clips(first, last, delta);
 230         playlist_selection_changed();
 231 }
 232
 233 void MainWindow::play_clicked()
 234 {
 235         if (playlist_clips->empty()) return;
 236
 237         QItemSelectionModel *selected = ui->playlist->selectionModel();
 238         int row;
 239         if (!selected->hasSelection()) {
 240                 row = 0;
 241         } else {
 242                 row = selected->selectedRows(0)[0].row();
 243         }
 244
 245         const Clip &clip = *playlist_clips->clip(row);
 246         live_player->play_clip(clip, clip.stream_idx);
 247         playlist_clips->set_currently_playing(row);
 248         playlist_selection_changed();
 249 }
 250
 251 void MainWindow::live_player_clip_done()
 252 {
 253         int row = playlist_clips->get_currently_playing();
 254         if (row != -1 && row < int(playlist_clips->size()) - 1) {
 255                 ++row;
 256                 const Clip &clip = *playlist_clips->clip(row);
 257                 live_player->play_clip(clip, clip.stream_idx);
 258                 playlist_clips->set_currently_playing(row);
 259         } else {
 260                 playlist_clips->set_currently_playing(-1);
 261         }
 262 }
 263
 264 void MainWindow::resizeEvent(QResizeEvent *event)
 265 {
 266         QMainWindow::resizeEvent(event);
 267
 268         // Ask for a relayout, but only after the event loop is done doing relayout
 269         // on everything else.
 270         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 271 }
 272
 273 void MainWindow::relayout()
 274 {
 275         ui->live_display->setMinimumHeight(ui->live_display->width() * 9 / 16);
 276 }
 277
 278 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 279 {
 280         constexpr int dead_zone_pixels = 3;  // To avoid that simple clicks get misinterpreted.
 281         constexpr int scrub_sensitivity = 100;  // pts units per pixel.
 282         constexpr int wheel_sensitivity = 100;  // pts units per degree.
 283         constexpr int camera_degrees_per_pixel = 15;  // One click of most mice.
 284
 285         unsigned stream_idx = ui->preview_display->get_stream_idx();
 286
 287         if (event->type() != QEvent::Wheel) {
 288                 last_mousewheel_camera_row = -1;
 289         }
 290
 291         if (event->type() == QEvent::MouseButtonPress) {
 292                 QMouseEvent *mouse = (QMouseEvent *)event;
 293
 294                 QTableView *destination;
 295                 ScrubType type;
 296
 297                 if (watched == ui->clip_list->viewport()) {
 298                         destination = ui->clip_list;
 299                         type = SCRUBBING_CLIP_LIST;
 300                 } else if (watched == ui->playlist->viewport()) {
 301                         destination = ui->playlist;
 302                         type = SCRUBBING_PLAYLIST;
 303                 } else {
 304                         return false;
 305                 }
 306                 int column = destination->columnAt(mouse->x());
 307                 int row = destination->rowAt(mouse->y());
 308                 if (column == -1 || row == -1) return false;
 309
 310                 if (type == SCRUBBING_CLIP_LIST) {
 311                         if (ClipList::Column(column) == ClipList::Column::IN) {
 312                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_in;
 313                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 314                         } else if (ClipList::Column(column) == ClipList::Column::OUT) {
 315                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_out;
 316                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 317                         } else {
 318                                 return false;
 319                         }
 320                 } else {
 321                         if (PlayList::Column(column) == PlayList::Column::IN) {
 322                                 scrub_pts_origin = playlist_clips->clip(row)->pts_in;
 323                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 324                         } else if (PlayList::Column(column) == PlayList::Column::OUT) {
 325                                 scrub_pts_origin = playlist_clips->clip(row)->pts_out;
 326                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 327                         } else {
 328                                 return false;
 329                         }
 330                 }
 331
 332                 scrubbing = true;
 333                 scrub_row = row;
 334                 scrub_column = column;
 335                 scrub_x_origin = mouse->x();
 336                 scrub_type = type;
 337         } else if (event->type() == QEvent::MouseMove) {
 338                 if (scrubbing) {
 339                         QMouseEvent *mouse = (QMouseEvent *)event;
 340                         int offset = mouse->x() - scrub_x_origin;
 341                         int adjusted_offset;
 342                         if (offset >= dead_zone_pixels) {
 343                                 adjusted_offset = offset - dead_zone_pixels;
 344                         } else if (offset < -dead_zone_pixels) {
 345                                 adjusted_offset = offset + dead_zone_pixels;
 346                         } else {
 347                                 adjusted_offset = 0;
 348                         }
 349
 350                         int64_t pts = scrub_pts_origin + adjusted_offset * scrub_sensitivity;
 351
 352                         if (scrub_type == SCRUBBING_CLIP_LIST) {
 353                                 ClipProxy clip = cliplist_clips->clip(scrub_row);
 354                                 if (scrub_column == int(ClipList::Column::IN)) {
 355                                         pts = std::max<int64_t>(pts, 0);
 356                                         pts = std::min(pts, clip->pts_out);
 357                                         clip->pts_in = pts;
 358                                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 359                                 } else {
 360                                         pts = std::max(pts, clip->pts_in);
 361                                         pts = std::min(pts, current_pts);
 362                                         clip->pts_out = pts;
 363                                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 364                                 }
 365                         } else {
 366                                 ClipProxy clip = playlist_clips->clip(scrub_row);
 367                                 if (scrub_column == int(PlayList::Column::IN)) {
 368                                         pts = std::max<int64_t>(pts, 0);
 369                                         pts = std::min(pts, clip->pts_out);
 370                                         clip->pts_in = pts;
 371                                         preview_single_frame(pts, clip->stream_idx, FIRST_AT_OR_AFTER);
 372                                 } else {
 373                                         pts = std::max(pts, clip->pts_in);
 374                                         pts = std::min(pts, current_pts);
 375                                         clip->pts_out = pts;
 376                                         preview_single_frame(pts, clip->stream_idx, LAST_BEFORE);
 377                                 }
 378                         }
 379
 380                         return true;  // Don't use this mouse movement for selecting things.
 381                 }
 382         } else if (event->type() == QEvent::Wheel) {
 383                 QWheelEvent *wheel = (QWheelEvent *)event;
 384
 385                 QTableView *destination;
 386                 int in_column, out_column, camera_column;
 387                 if (watched == ui->clip_list->viewport()) {
 388                         destination = ui->clip_list;
 389                         in_column = int(ClipList::Column::IN);
 390                         out_column = int(ClipList::Column::OUT);
 391                         camera_column = -1;
 392                         last_mousewheel_camera_row = -1;
 393                 } else if (watched == ui->playlist->viewport()) {
 394                         destination = ui->playlist;
 395                         in_column = int(PlayList::Column::IN);
 396                         out_column = int(PlayList::Column::OUT);
 397                         camera_column = int(PlayList::Column::CAMERA);
 398                 } else {
 399                         last_mousewheel_camera_row = -1;
 400                         return false;
 401                 }
 402                 int column = destination->columnAt(wheel->x());
 403                 int row = destination->rowAt(wheel->y());
 404                 if (column == -1 || row == -1) return false;
 405
 406                 ClipProxy clip = (watched == ui->clip_list->viewport()) ?
 407                         cliplist_clips->clip(row) : playlist_clips->clip(row);
 408                 if (watched == ui->playlist->viewport()) {
 409                         stream_idx = clip->stream_idx;
 410                 }
 411
 412                 if (column != camera_column) {
 413                         last_mousewheel_camera_row = -1;
 414                 }
 415                 if (column == in_column) {
 416                         int64_t pts = clip->pts_in + wheel->angleDelta().y() * wheel_sensitivity;
 417                         pts = std::max<int64_t>(pts, 0);
 418                         pts = std::min(pts, clip->pts_out);
 419                         clip->pts_in = pts;
 420                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 421                 } else if (column == out_column) {
 422                         int64_t pts = clip->pts_out + wheel->angleDelta().y() * wheel_sensitivity;
 423                         pts = std::max(pts, clip->pts_in);
 424                         pts = std::min(pts, current_pts);
 425                         clip->pts_out = pts;
 426                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 427                 } else if (column == camera_column) {
 428                         int angle_degrees = wheel->angleDelta().y();
 429                         if (last_mousewheel_camera_row == row) {
 430                                 angle_degrees += leftover_angle_degrees;
 431                         }
 432
 433                         int stream_idx = clip->stream_idx + angle_degrees / camera_degrees_per_pixel;
 434                         stream_idx = std::max(stream_idx, 0);
 435                         stream_idx = std::min(stream_idx, NUM_CAMERAS - 1);
 436                         clip->stream_idx = stream_idx;
 437
 438                         last_mousewheel_camera_row = row;
 439                         leftover_angle_degrees = angle_degrees % camera_degrees_per_pixel;
 440
 441                         // Don't update the live view, that's rarely what the operator wants.
 442                 }
 443         } else if (event->type() == QEvent::MouseButtonRelease) {
 444                 scrubbing = false;
 445         }
 446         return false;
 447 }
 448
 449 void MainWindow::preview_single_frame(int64_t pts, unsigned stream_idx, MainWindow::Rounding rounding)
 450 {
 451         if (rounding == LAST_BEFORE) {
 452                 lock_guard<mutex> lock(frame_mu);
 453                 if (frames[stream_idx].empty()) return;
 454                 auto it = lower_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts);
 455                 if (it != frames[stream_idx].end()) {
 456                         pts = *it;
 457                 }
 458         } else {
 459                 assert(rounding == FIRST_AT_OR_AFTER);
 460                 lock_guard<mutex> lock(frame_mu);
 461                 if (frames[stream_idx].empty()) return;
 462                 auto it = upper_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts - 1);
 463                 if (it != frames[stream_idx].end()) {
 464                         pts = *it;
 465                 }
 466         }
 467
 468         Clip fake_clip;
 469         fake_clip.pts_in = pts;
 470         fake_clip.pts_out = pts + 1;
 471         preview_player->play_clip(fake_clip, stream_idx);
 472 }
 473
 474 void MainWindow::playlist_selection_changed()
 475 {
 476         QItemSelectionModel *selected = ui->playlist->selectionModel();
 477         bool any_selected = selected->hasSelection();
 478         ui->playlist_duplicate_btn->setEnabled(any_selected);
 479         ui->playlist_remove_btn->setEnabled(any_selected);
 480         ui->playlist_move_up_btn->setEnabled(
 481                 any_selected && selected->selectedRows().front().row() > 0);
 482         ui->playlist_move_down_btn->setEnabled(
 483                 any_selected && selected->selectedRows().back().row() < int(playlist_clips->size()) - 1);
 484         ui->play_btn->setEnabled(!playlist_clips->empty());
 485 }