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/****************************************************************************
** Copyright (C) 2001-2010 Klaralvdalens Datakonsult AB. All rights reserved.
**
** This file is part of the KD Tools library.
**
** Licensees holding valid commercial KD Tools licenses may use this file in
** accordance with the KD Tools Commercial License Agreement provided with
** the Software.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU Lesser General Public License version 2 and version 3 as published by the
** Free Software Foundation and appearing in the file LICENSE.LGPL included.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** Contact info@kdab.com if any conditions of this licensing are not
** clear to you.
**
**********************************************************************/
#ifndef KD_UPDATER_TASK_H
#define KD_UPDATER_TASK_H
#include "kdupdater.h"
#include <QObject>
namespace KDUpdater {
class KDTOOLS_EXPORT Task : public QObject
{
Q_OBJECT
public:
enum Capability
{
NoCapability = 0,
Pausable = 1,
Stoppable = 2
};
virtual ~Task();
QString name() const;
int capabilities() const;
int error() const;
QString errorString() const;
bool isRunning() const;
bool isFinished() const;
bool isPaused() const;
bool isStopped() const;
int progressPercent() const;
QString progressText() const;
bool autoDelete() const;
void setAutoDelete(bool autoDelete);
public Q_SLOTS:
void run();
void stop();
void pause();
void resume();
Q_SIGNALS:
void error(int code, const QString &errorText);
void progressValue(int percent);
void progressText(const QString &progressText);
void started();
void paused();
void resumed();
void stopped();
void finished();
protected:
explicit Task(const QString &name, int caps = NoCapability, QObject *parent = 0);
void reportProgress(int percent, const QString &progressText);
void reportError(int errorCode, const QString &errorText);
void reportError(const QString &errorText);
void reportDone();
// Task interface
virtual void doRun() = 0;
virtual bool doStop() = 0;
virtual bool doPause() = 0;
virtual bool doResume() = 0;
private:
int m_caps;
QString m_name;
int m_errorCode;
QString m_errorText;
bool m_started;
bool m_finished;
bool m_paused;
bool m_stopped;
int m_progressPc;
QString m_progressText;
bool m_autoDelete;
};
} // namespace KDUpdater
#endif // KD_UPDATER_TASK_H
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