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//! [0]
Q3ProgressDialog progress("Copying files...", "Abort Copy", numFiles,
this, "progress", true);
for (int i = 0; i < numFiles; i++) {
progress.setProgress(i);
qApp->processEvents();
if (progress.wasCanceled())
break;
//... copy one file
}
progress.setProgress(numFiles);
//! [0]
//! [1]
Operation::Operation(QObject *parent = 0)
: QObject(parent), steps(0)
{
pd = new Q3ProgressDialog("Operation in progress.", "Cancel", 100);
connect(pd, SIGNAL(canceled()), this, SLOT(cancel()));
t = new QTimer(this);
connect(t, SIGNAL(timeout()), this, SLOT(perform()));
t->start(0);
}
void Operation::perform()
{
pd->setProgress(steps);
//... perform one percent of the operation
steps++;
if (steps > pd->totalSteps())
t->stop();
}
void Operation::cancel()
{
t->stop();
//... cleanup
}
//! [1]
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