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