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         // TODO: These are too big for lambdas.
  42         QShortcut *cue_in = new QShortcut(QKeySequence(Qt::Key_A), this);
  43         connect(cue_in, &QShortcut::activated, ui->cue_in_btn, &QPushButton::click);
  44         connect(ui->cue_in_btn, &QPushButton::clicked, []{
  45                 if (!cliplist_clips->empty() && cliplist_clips->back()->pts_out < 0) {
  46                         cliplist_clips->back()->pts_in = current_pts;
  47                         return;
  48                 }
  49                 Clip clip;
  50                 clip.pts_in = current_pts;
  51                 cliplist_clips->add_clip(clip);
  52         });
  53
  54         QShortcut *cue_out = new QShortcut(QKeySequence(Qt::Key_S), this);
  55         connect(cue_out, &QShortcut::activated, ui->cue_out_btn, &QPushButton::click);
  56         connect(ui->cue_out_btn, &QPushButton::clicked, []{
  57                 if (!cliplist_clips->empty()) {
  58                         cliplist_clips->back()->pts_out = current_pts;
  59                         // TODO: select the row in the clip list?
  60                 }
  61         });
  62
  63         QShortcut *queue = new QShortcut(QKeySequence(Qt::Key_Q), this);
  64         connect(queue, &QShortcut::activated, ui->queue_btn, &QPushButton::click);
  65         connect(ui->queue_btn, &QPushButton::clicked, this, &MainWindow::queue_clicked);
  66
  67         QShortcut *preview = new QShortcut(QKeySequence(Qt::Key_W), this);
  68         connect(preview, &QShortcut::activated, ui->preview_btn, &QPushButton::click);
  69         connect(ui->preview_btn, &QPushButton::clicked, this, &MainWindow::preview_clicked);
  70
  71         QShortcut *play = new QShortcut(QKeySequence(Qt::Key_Space), this);
  72         connect(play, &QShortcut::activated, ui->play_btn, &QPushButton::click);
  73         connect(ui->play_btn, &QPushButton::clicked, this, &MainWindow::play_clicked);
  74
  75         preview_player = new Player(ui->preview_display);
  76         live_player = new Player(ui->live_display);
  77         live_player->set_done_callback([this]{
  78                 post_to_main_thread([this]{
  79                         live_player_clip_done();
  80                 });
  81         });
  82 }
  83
  84 void MainWindow::queue_clicked()
  85 {
  86         QItemSelectionModel *selected = ui->clip_list->selectionModel();
  87         if (!selected->hasSelection()) {
  88                 Clip clip = *cliplist_clips->back();
  89                 clip.stream_idx = 0;
  90                 playlist_clips->add_clip(clip);
  91                 return;
  92         }
  93
  94         QModelIndex index = selected->currentIndex();
  95         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
  96             index.column() <= int(ClipList::Column::CAMERA_4)) {
  97                 Clip clip = *cliplist_clips->clip(index.row());
  98                 clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
  99                 playlist_clips->add_clip(clip);
 100         }
 101 }
 102
 103 void MainWindow::preview_clicked()
 104 {
 105         if (cliplist_clips->empty()) return;
 106
 107         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 108         if (!selected->hasSelection()) {
 109                 preview_player->play_clip(*cliplist_clips->back(), 0);
 110                 return;
 111         }
 112
 113         QModelIndex index = selected->currentIndex();
 114         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 115             index.column() <= int(ClipList::Column::CAMERA_4)) {
 116                 unsigned stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 117                 preview_player->play_clip(*cliplist_clips->clip(index.row()), stream_idx);
 118         }
 119 }
 120
 121 void MainWindow::play_clicked()
 122 {
 123         if (playlist_clips->empty()) return;
 124
 125         QItemSelectionModel *selected = ui->playlist->selectionModel();
 126         int row;
 127         if (!selected->hasSelection()) {
 128                 row = 0;
 129         } else {
 130                 row = selected->selectedRows(0)[0].row();
 131         }
 132
 133         const Clip &clip = *playlist_clips->clip(row);
 134         live_player->play_clip(clip, clip.stream_idx);
 135         playlist_clips->set_currently_playing(row);
 136 }
 137
 138 void MainWindow::live_player_clip_done()
 139 {
 140         int row = playlist_clips->get_currently_playing();
 141         if (row != -1 && row < int(playlist_clips->size()) - 1) {
 142                 ++row;
 143                 const Clip &clip = *playlist_clips->clip(row);
 144                 live_player->play_clip(clip, clip.stream_idx);
 145                 playlist_clips->set_currently_playing(row);
 146         } else {
 147                 playlist_clips->set_currently_playing(-1);
 148         }
 149 }
 150
 151 void MainWindow::resizeEvent(QResizeEvent *event)
 152 {
 153         QMainWindow::resizeEvent(event);
 154
 155         // Ask for a relayout, but only after the event loop is done doing relayout
 156         // on everything else.
 157         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 158 }
 159
 160 void MainWindow::relayout()
 161 {
 162         ui->live_display->setMinimumHeight(ui->live_display->width() * 9 / 16);
 163 }
 164
 165 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 166 {
 167         constexpr int dead_zone_pixels = 3;  // To avoid that simple clicks get misinterpreted.
 168         constexpr int scrub_sensitivity = 100;  // pts units per pixel.
 169         constexpr int wheel_sensitivity = 100;  // pts units per degree.
 170
 171         unsigned stream_idx = ui->preview_display->get_stream_idx();
 172
 173         if (event->type() == QEvent::MouseButtonPress) {
 174                 QMouseEvent *mouse = (QMouseEvent *)event;
 175
 176                 QTableView *destination;
 177                 ScrubType type;
 178
 179                 if (watched == ui->clip_list->viewport()) {
 180                         destination = ui->clip_list;
 181                         type = SCRUBBING_CLIP_LIST;
 182                 } else if (watched == ui->playlist->viewport()) {
 183                         destination = ui->playlist;
 184                         type = SCRUBBING_PLAYLIST;
 185                 } else {
 186                         return false;
 187                 }
 188                 int column = destination->columnAt(mouse->x());
 189                 int row = destination->rowAt(mouse->y());
 190                 if (column == -1 || row == -1) return false;
 191
 192                 if (type == SCRUBBING_CLIP_LIST) {
 193                         if (ClipList::Column(column) == ClipList::Column::IN) {
 194                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_in;
 195                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 196                         } else if (ClipList::Column(column) == ClipList::Column::OUT) {
 197                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_out;
 198                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 199                         } else {
 200                                 return false;
 201                         }
 202                 } else {
 203                         if (PlayList::Column(column) == PlayList::Column::IN) {
 204                                 scrub_pts_origin = playlist_clips->clip(row)->pts_in;
 205                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 206                         } else if (PlayList::Column(column) == PlayList::Column::OUT) {
 207                                 scrub_pts_origin = playlist_clips->clip(row)->pts_out;
 208                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 209                         } else {
 210                                 return false;
 211                         }
 212                 }
 213
 214                 scrubbing = true;
 215                 scrub_row = row;
 216                 scrub_column = column;
 217                 scrub_x_origin = mouse->x();
 218                 scrub_type = type;
 219         } else if (event->type() == QEvent::MouseMove) {
 220                 if (scrubbing) {
 221                         QMouseEvent *mouse = (QMouseEvent *)event;
 222                         int offset = mouse->x() - scrub_x_origin;
 223                         int adjusted_offset;
 224                         if (offset >= dead_zone_pixels) {
 225                                 adjusted_offset = offset - dead_zone_pixels;
 226                         } else if (offset < -dead_zone_pixels) {
 227                                 adjusted_offset = offset + dead_zone_pixels;
 228                         } else {
 229                                 adjusted_offset = 0;
 230                         }
 231
 232                         int64_t pts = scrub_pts_origin + adjusted_offset * scrub_sensitivity;
 233
 234                         if (scrub_type == SCRUBBING_CLIP_LIST) {
 235                                 if (scrub_column == int(ClipList::Column::IN)) {
 236                                         pts = std::max<int64_t>(pts, 0);
 237                                         pts = std::min(pts, cliplist_clips->clip(scrub_row)->pts_out);
 238                                         cliplist_clips->clip(scrub_row)->pts_in = pts;
 239                                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 240                                 } else {
 241                                         pts = std::max(pts, cliplist_clips->clip(scrub_row)->pts_in);
 242                                         pts = std::min(pts, current_pts);
 243                                         cliplist_clips->clip(scrub_row)->pts_out = pts;
 244                                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 245                                 }
 246                         } else {
 247                                 if (scrub_column == int(PlayList::Column::IN)) {
 248                                         pts = std::max<int64_t>(pts, 0);
 249                                         pts = std::min(pts, playlist_clips->clip(scrub_row)->pts_out);
 250                                         playlist_clips->clip(scrub_row)->pts_in = pts;
 251                                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 252                                 } else {
 253                                         pts = std::max(pts, playlist_clips->clip(scrub_row)->pts_in);
 254                                         pts = std::min(pts, current_pts);
 255                                         playlist_clips->clip(scrub_row)->pts_out = pts;
 256                                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 257                                 }
 258                         }
 259
 260                         return true;  // Don't use this mouse movement for selecting things.
 261                 }
 262         } else if (event->type() == QEvent::Wheel) {
 263                 QWheelEvent *wheel = (QWheelEvent *)event;
 264
 265                 QTableView *destination;
 266                 int in_column, out_column;
 267                 if (watched == ui->clip_list->viewport()) {
 268                         destination = ui->clip_list;
 269                         in_column = int(ClipList::Column::IN);
 270                         out_column = int(ClipList::Column::OUT);
 271                 } else if (watched == ui->playlist->viewport()) {
 272                         destination = ui->playlist;
 273                         in_column = int(PlayList::Column::IN);
 274                         out_column = int(PlayList::Column::OUT);
 275                 } else {
 276                         return false;
 277                 }
 278                 int column = destination->columnAt(wheel->x());
 279                 int row = destination->rowAt(wheel->y());
 280                 if (column == -1 || row == -1) return false;
 281
 282                 ClipProxy clip = (watched == ui->clip_list->viewport()) ?
 283                         cliplist_clips->clip(row) : playlist_clips->clip(row);
 284
 285                 if (column == in_column) {
 286                         int64_t pts = clip->pts_in + wheel->angleDelta().y() * wheel_sensitivity;
 287                         pts = std::max<int64_t>(pts, 0);
 288                         pts = std::min(pts, clip->pts_out);
 289                         clip->pts_in = pts;
 290                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 291                 } else if (column == out_column) {
 292                         int64_t pts = clip->pts_out + wheel->angleDelta().y() * wheel_sensitivity;
 293                         pts = std::max(pts, clip->pts_in);
 294                         pts = std::min(pts, current_pts);
 295                         clip->pts_out = pts;
 296                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 297                 }
 298         } else if (event->type() == QEvent::MouseButtonRelease) {
 299                 scrubbing = false;
 300         }
 301         return false;
 302 }
 303
 304 void MainWindow::preview_single_frame(int64_t pts, unsigned stream_idx, MainWindow::Rounding rounding)
 305 {
 306         if (rounding == LAST_BEFORE) {
 307                 lock_guard<mutex> lock(frame_mu);
 308                 if (frames[stream_idx].empty()) return;
 309                 auto it = lower_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts);
 310                 if (it != frames[stream_idx].end()) {
 311                         pts = *it;
 312                 }
 313         } else {
 314                 assert(rounding == FIRST_AT_OR_AFTER);
 315                 lock_guard<mutex> lock(frame_mu);
 316                 if (frames[stream_idx].empty()) return;
 317                 auto it = upper_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts - 1);
 318                 if (it != frames[stream_idx].end()) {
 319                         pts = *it;
 320                 }
 321         }
 322
 323         Clip fake_clip;
 324         fake_clip.pts_in = pts;
 325         fake_clip.pts_out = pts + 1;
 326         preview_player->play_clip(fake_clip, stream_idx);
 327 }