+void MainWindow::relayout_displays()
+{
+ while (ui->input_displays->count() > 0) {
+ QLayoutItem *item = ui->input_displays->takeAt(0);
+ ui->input_displays->removeWidget(item->widget());
+ }
+
+ unsigned cell_idx = 0;
+ for (unsigned i = 0; i < displays.size(); ++i) {
+ if (displays[i].hidden) {
+ displays[i].frame->setVisible(false);
+ } else {
+ displays[i].frame->setVisible(true);
+ ui->input_displays->addWidget(displays[i].frame, cell_idx / 2, cell_idx % 2);
+ ++cell_idx;
+ }
+ }
+ ui->video_displays->setStretch(1, (cell_idx + 1) / 2);
+
+ QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
+}
+