- if (!fn.empty()) {
- string const bb = readBB(fn);
- if (!bb.empty()) {
- lbX->setText(toqstr(token(bb, ' ', 0)));
- lbY->setText(toqstr(token(bb, ' ', 1)));
- rtX->setText(toqstr(token(bb, ' ', 2)));
- rtY->setText(toqstr(token(bb, ' ', 3)));
- // the default units for the bb values when reading
- // it from the file
- lbXunit->setCurrentIndex(0);
- lbYunit->setCurrentIndex(0);
- rtXunit->setCurrentIndex(0);
- rtYunit->setCurrentIndex(0);
- }
- bbChanged = false;
- }
+ if (fn.empty())
+ return;
+ string const bb = readBB(fn);
+ bbChanged = false;
+ if (bb.empty())
+ return;
+ lbX->setText(toqstr(token(bb, ' ', 0)));
+ lbY->setText(toqstr(token(bb, ' ', 1)));
+ rtX->setText(toqstr(token(bb, ' ', 2)));
+ rtY->setText(toqstr(token(bb, ' ', 3)));
+ // the default units for the bb values when reading
+ // it from the file
+ lbXunit->setCurrentIndex(0);
+ lbYunit->setCurrentIndex(0);
+ rtXunit->setCurrentIndex(0);
+ rtYunit->setCurrentIndex(0);