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