kpmcore/src/core/copytarget.h

61 lines
2.0 KiB
C++

/*************************************************************************
* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>.*
*************************************************************************/
#if !defined(KPMCORE_COPYTARGET_H)
#define KPMCORE_COPYTARGET_H
#include <QtGlobal>
/** Base class for something to copy to.
Abstract base class for all copy targets. Used together with CopySource to
implement moving, copying, restoring and backing up FileSystems.
@see CopySource
@author Volker Lanz <vl@fidra.de>
*/
class CopyTarget
{
Q_DISABLE_COPY(CopyTarget)
protected:
CopyTarget() : m_BytesWritten(0) {}
virtual ~CopyTarget() {}
public:
virtual bool open() = 0;
virtual bool writeData(QByteArray& buffer, qint64 writeOffset) = 0;
virtual qint64 firstByte() const = 0;
virtual qint64 lastByte() const = 0;
qint64 bytesWritten() const {
return m_BytesWritten;
}
protected:
void setBytesWritten(qint64 s) {
m_BytesWritten = s;
}
private:
qint64 m_BytesWritten;
};
#endif