int main(int argc, char ** argv) {
using Q = QObject;
QApplication app{argc, argv};
QWidget ui;
QVBoxLayout layout{&ui};
QTextBrowser log;
QProgressBar bar;
QPushButton scan{"Scan localhost"};
layout.addWidget(&log);
layout.addWidget(&bar);
layout.addWidget(&scan);
bar.setRange(1, 65535);
ui.show();
Scanner scanner;
Q::connect(&scan, &QPushButton::clicked, &scanner, [&]{
scan.setEnabled(false);
scanner.start();
});
Q::connect(&scanner, &Scanner::hasResult, &log, [&](int port, bool isOpen){
bar.setValue(port);
if (!isOpen) return;
auto color = isOpen ? QStringLiteral("green") : QStringLiteral("red");
auto state = isOpen ? QStringLiteral("open") : QStringLiteral("closed");
log.append(QStringLiteral("<font color=\"%1\">Port %2 is %3.</font><br/>").
arg(color).arg(port).arg(state));
});
Q::connect(&scanner, &Scanner::done, &scan, [&]{
bar.reset();
scan.setEnabled(true);
});
return app.exec();
}
void inc_progress_bar(int, int, void *p)
{
QProgressBar *bar = (QProgressBar *)p;
int value = bar->value();
if (value == bar->maximum()) {
bar->reset();
} else {
bar->setValue(value +1);
}
}