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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef ROUNDPROGRESS_H
#define ROUNDPROGRESS_H
#include "ui_roundprogress.h"
#include <QtCore>
#include <QtGui>
#include <QtDebug>
#include <QtGui/QMainWindow>
#include <QtCore/QFutureInterface>
#include <QtCore/QFuture>
class MyInternalTask : public QObject
{
Q_OBJECT
public:
static const int MAX = 10;
MyInternalTask(bool withProgress)
{
m_hasProgress = withProgress;
if (m_hasProgress)
m_duration = 4000;
else
m_duration = 2500;
}
MyInternalTask(const MyInternalTask &) : QObject() {}
void run(QFutureInterface<void> &f)
{
m_future = &f;
m_count = 0;
m_future->setProgressRange(0, (m_hasProgress ? MAX : 0));
m_future->setProgressValueAndText(m_count, tr("Starting..."));
m_loop = new QEventLoop;
m_timer = new QTimer;
m_timer->setInterval(m_duration/MAX);
m_timer->setSingleShot(false);
connect(m_timer, SIGNAL(timeout()), this, SLOT(advance()));
m_timer->start();
m_loop->exec();
delete m_timer;
delete m_loop;
}
private slots:
void advance()
{
++m_count;
m_future->setProgressValueAndText(m_count, tr("Something happening %1").arg(m_count));
if (m_count == MAX || m_future->isCanceled()) {
m_future->setProgressValueAndText(m_count, tr("Finished!"));
m_loop->quit();
}
}
private:
bool m_hasProgress;
QEventLoop *m_loop;
QTimer *m_timer;
QFutureInterface<void> *m_future;
int m_count;
int m_duration;
};
class roundprogress : public QWidget
{
Q_OBJECT
public:
roundprogress(QWidget *parent = 0);
~roundprogress() {}
private slots:
void start();
void start2();
void start3();
private:
Ui::roundprogressClass ui;
MyInternalTask task;
MyInternalTask task2;
QFuture<void> future;
};
#endif // ROUNDPROGRESS_H
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