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