for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
QString description(QString::fromStdString(global_mixer->get_card_description(card_index)));
QAction *action = new QAction(description, &card_group);
for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
QString description(QString::fromStdString(global_mixer->get_card_description(card_index)));
QAction *action = new QAction(description, &card_group);