Add some playlist manipulation controls.

[nageru] / mainwindow.cpp

diff --git a/mainwindow.cpp b/mainwindow.cpp
index 04b4e56275d9e93bcdc37aa7c8e8e3fe6fc3e9c5..6b100ac358160244fceafda29882c61bd860fd51 100644 (file)
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -74,6 +74,19 @@ MainWindow::MainWindow()
        connect(preview_4, &QShortcut::activated, ui->preview_4_btn, &QPushButton::click);
        connect(ui->preview_4_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(3); });
 
+       connect(ui->playlist_duplicate_btn, &QPushButton::clicked, this, &MainWindow::playlist_duplicate);
+
+       // TODO: support the delete key iff the widget has focus?
+       connect(ui->playlist_remove_btn, &QPushButton::clicked, this, &MainWindow::playlist_remove);
+
+       // TODO: support drag-and-drop.
+       connect(ui->playlist_move_up_btn, &QPushButton::clicked, [this]{ playlist_move(-1); });
+       connect(ui->playlist_move_down_btn, &QPushButton::clicked, [this]{ playlist_move(1); });
+
+       connect(ui->playlist->selectionModel(), &QItemSelectionModel::selectionChanged,
+               this, &MainWindow::playlist_selection_changed);
+       playlist_selection_changed();  // First time set-up.
+
        preview_player = new Player(ui->preview_display);
        live_player = new Player(ui->live_display);
        live_player->set_done_callback([this]{
@@ -92,6 +105,7 @@ void MainWindow::cue_in_clicked()
        Clip clip;
        clip.pts_in = current_pts;
        cliplist_clips->add_clip(clip);
+       playlist_selection_changed();
 }
 
 void MainWindow::cue_out_clicked()
@@ -122,6 +136,7 @@ void MainWindow::queue_clicked()
                Clip clip = *cliplist_clips->clip(index.row());
                clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
                playlist_clips->add_clip(clip);
+               playlist_selection_changed();
        }
 }
 
@@ -158,6 +173,55 @@ void MainWindow::preview_angle_clicked(unsigned stream_idx)
        }
 }
 
+void MainWindow::playlist_duplicate()
+{
+       QItemSelectionModel *selected = ui->playlist->selectionModel();
+       if (!selected->hasSelection()) {
+               // Should have been grayed out, but OK.
+               return;
+       }
+       QModelIndexList rows = selected->selectedRows();
+       int first = rows.front().row(), last = rows.back().row();
+       playlist_clips->duplicate_clips(first, last);
+       playlist_selection_changed();
+}
+
+void MainWindow::playlist_remove()
+{
+       QItemSelectionModel *selected = ui->playlist->selectionModel();
+       if (!selected->hasSelection()) {
+               // Should have been grayed out, but OK.
+               return;
+       }
+       QModelIndexList rows = selected->selectedRows();
+       int first = rows.front().row(), last = rows.back().row();
+       playlist_clips->erase_clips(first, last);
+
+       // TODO: select the next one in the list?
+
+       playlist_selection_changed();
+}
+
+void MainWindow::playlist_move(int delta)
+{
+       QItemSelectionModel *selected = ui->playlist->selectionModel();
+       if (!selected->hasSelection()) {
+               // Should have been grayed out, but OK.
+               return;
+       }
+
+       QModelIndexList rows = selected->selectedRows();
+       int first = rows.front().row(), last = rows.back().row();
+       if ((delta == -1 && first == 0) ||
+           (delta == 1 && size_t(last) == playlist_clips->size() - 1)) {
+               // Should have been grayed out, but OK.
+               return;
+       }
+
+       playlist_clips->move_clips(first, last, delta);
+       playlist_selection_changed();
+}
+
 void MainWindow::play_clicked()
 {
        if (playlist_clips->empty()) return;
@@ -173,6 +237,7 @@ void MainWindow::play_clicked()
        const Clip &clip = *playlist_clips->clip(row);
        live_player->play_clip(clip, clip.stream_idx);
        playlist_clips->set_currently_playing(row);
+       playlist_selection_changed();
 }
 
 void MainWindow::live_player_clip_done()
@@ -365,3 +430,16 @@ void MainWindow::preview_single_frame(int64_t pts, unsigned stream_idx, MainWind
        fake_clip.pts_out = pts + 1;
        preview_player->play_clip(fake_clip, stream_idx);
 }
+
+void MainWindow::playlist_selection_changed()
+{
+       QItemSelectionModel *selected = ui->playlist->selectionModel();
+       bool any_selected = selected->hasSelection();
+       ui->playlist_duplicate_btn->setEnabled(any_selected);
+       ui->playlist_remove_btn->setEnabled(any_selected);
+       ui->playlist_move_up_btn->setEnabled(
+               any_selected && selected->selectedRows().front().row() > 0);
+       ui->playlist_move_down_btn->setEnabled(
+               any_selected && selected->selectedRows().back().row() < int(playlist_clips->size()) - 1);
+       ui->play_btn->setEnabled(!playlist_clips->empty());
+}