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// Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
// SPDX-License-Identifier: BSD-3-Clause
#include <QApplication>
#include <QDesktopWidget>
#include <QLabel>
#include <QDir>
#include <QSettings>
#include "qtservice.h"
class InteractiveService : public QtService<QApplication>
{
public:
InteractiveService(int argc, char **argv);
~InteractiveService();
protected:
void start();
void stop();
void pause();
void resume();
void processCommand(int code);
private:
QLabel *gui;
};
InteractiveService::InteractiveService(int argc, char **argv)
: QtService<QApplication>(argc, argv, "Qt Interactive Service"), gui(0)
{
setServiceDescription("A Qt service with user interface.");
setServiceFlags(QtServiceBase::CanBeSuspended);
}
InteractiveService::~InteractiveService()
{
}
void InteractiveService::start()
{
#if defined(Q_OS_WIN)
if ((QSysInfo::WindowsVersion & QSysInfo::WV_NT_based) &&
(QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)) {
logMessage( "Service GUI not allowed on Windows Vista. See the documentation for this example for more information.", QtServiceBase::Error );
return;
}
#endif
qApp->setQuitOnLastWindowClosed(false);
gui = new QLabel("Service", 0, Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);
gui->move(QApplication::desktop()->availableGeometry().topLeft());
gui->show();
}
void InteractiveService::stop()
{
delete gui;
}
void InteractiveService::pause()
{
if (gui)
gui->hide();
}
void InteractiveService::resume()
{
if (gui)
gui->show();
}
void InteractiveService::processCommand(int code)
{
gui->setText("Command code " + QString::number(code));
gui->adjustSize();
}
int main(int argc, char **argv)
{
#if !defined(Q_OS_WIN)
// QtService stores service settings in SystemScope, which normally require root privileges.
// To allow testing this example as non-root, we change the directory of the SystemScope settings file.
QSettings::setPath(QSettings::NativeFormat, QSettings::SystemScope, QDir::tempPath());
qWarning("(Example uses dummy settings file: %s/QtSoftware.conf)", QDir::tempPath().toLatin1().constData());
#endif
InteractiveService service(argc, argv);
return service.exec();
}
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