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/***************************************************************************
**
** Copyright (C) 2015 Jochen Becher
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** 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.
**
** In addition, 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.
**
****************************************************************************/
#ifndef QCOMPRESSEDDEVICE_H
#define QCOMPRESSEDDEVICE_H
#include <QIODevice>
#include <QByteArray>
namespace qmt {
class QCompressedDevice : public QIODevice
{
Q_OBJECT
public:
explicit QCompressedDevice(QObject *parent = 0);
explicit QCompressedDevice(QIODevice *targetDevice, QObject *parent = 0);
~QCompressedDevice() override;
QIODevice *targetDevice() const { return m_targetDevice; }
void setTargetDevice(QIODevice *targetDevice);
void close() override;
protected:
qint64 readData(char *data, qint64 maxlen) override;
qint64 writeData(const char *data, qint64 len) override;
public:
qint64 flush();
private:
QIODevice *m_targetDevice = 0;
QByteArray m_buffer;
qint64 m_bytesInBuffer = 0;
qint64 m_indexInBuffer = 0;
};
} // namespace qmt
#endif // QCOMPRESSEDDEVICE_H
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