- double preview_label_height = previews[0]->title_bar->geometry().height() + ui->preview_displays->spacing(); // Wrong spacing?
- int preview_total_width = ui->preview_displays->geometry().width();
+ double preview_label_height = previews[0]->title_bar->geometry().height() +
+ previews[0]->main_vertical_layout->spacing();
+ int preview_total_width = ui->preview_displays->geometry().width() - (previews.size() - 1) * ui->preview_displays->spacing();