In my application I have the following code in a dialog:
connect(drive, SIGNAL(FileProgressChanged(Progress)), SLOT(OnFileProgressChanged(Progress)));
QtConcurrent::run(this, &ProgressDialog::PerformOperation, Operation, *Path, OutPath, drive);
The PerformOperation function eventually calls to a function in drive
which emits the signal FileProgressChanged
, and my OnFileProgressChanged
function is as follows:
void ProgressDialog::OnFileProgressChanged(Progress p)
{
if (ui->progressCurrent->maximum() != p.Maximium)
ui->progressCurrent->setMaximum(p.Maximium);
ui->progressCurrent->setValue(p.Current);
if (ui->groupBoxCurrent->title().toStdString() != p.FilePath)
ui->groupBoxCurrent->setTitle(QString::fromStdString(p.FilePath));
}
I was doing some reading and saw that QFuture and QFutureWatcher support monitoring progress values (which would work great in this situation!), but those cannot be used in conjunction with QtConcurrent::run
.
How would I go about connecting the signal that gets moved emitted on the separate thread to the slot on my main thread so I can monitor the progress of the function called on the emitter thread?
*Edit -- * I actually found an error with my code, but it doesn't seem to have an affect. I forgot to add this
as an argument after the signal
connect(drive, SIGNAL(FileProgressChanged(Progress)), this, SLOT(OnFileProgressChanged(Progress)));