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/**************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
**************************************************************************/
#ifndef OBSERVER_H
#define OBSERVER_H
#include <QCryptographicHash>
#include <QObject>
namespace QInstaller {
class Observer : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(Observer)
public:
Observer() {}
virtual ~Observer() {}
virtual int progressValue() const = 0;
virtual QString progressText() const = 0;
};
class FileTaskObserver : public Observer
{
Q_OBJECT
Q_DISABLE_COPY(FileTaskObserver)
public:
FileTaskObserver(QCryptographicHash::Algorithm algorithm);
~FileTaskObserver();
int progressValue() const;
QString progressText() const;
QByteArray checkSum() const;
void addCheckSumData(const char *data, int length);
void addSample(qint64 sample);
void timerEvent(QTimerEvent *event);
void setBytesTransfered(qint64 bytesTransfered);
void addBytesTransfered(qint64 bytesTransfered);
void setBytesToTransfer(qint64 bytesToTransfer);
private:
void init();
private:
int m_timerId;
int m_timerInterval;
qint64 m_bytesTransfered;
qint64 m_bytesToTransfer;
qint64 m_samples[50];
quint32 m_sampleIndex;
qint64 m_bytesPerSecond;
qint64 m_currentSpeedBin;
QCryptographicHash m_hash;
};
} // namespace QInstaller
#endif // OBSERVER_H
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