QStringList Window::findFiles(const QDir &directory, const QStringList &files, const QString &text){ QProgressDialog progressDialog(this); progressDialog.setCancelButtonText(tr("&Cancel")); progressDialog.setRange(0, files.size()); progressDialog.setWindowTitle(tr("Find Files")); QStringList foundFiles; for (int i = 0; i < files.size(); ++i) { progressDialog.setValue(i); progressDialog.setLabelText(tr("Searching file number %1 of %2...") .arg(i).arg(files.size())); qApp->processEvents(); if (progressDialog.wasCanceled()) break; QFile file(directory.absoluteFilePath(files[i])); if (file.open(QIODevice::ReadOnly)) { QString line; QTextStream in(&file); while (!in.atEnd()) { if (progressDialog.wasCanceled()) break; line = in.readLine(); if (line.contains(text)) { foundFiles << files[i]; break; } } } } return foundFiles;}