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/****************************************************************************
**
** Copyright (C) 2016 Jochen Becher
** Contact: https://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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include <QIODevice>
#include <QByteArray>
namespace qmt {
class QCompressedDevice : public QIODevice
{
Q_OBJECT
public:
explicit QCompressedDevice(QObject *parent = nullptr);
explicit QCompressedDevice(QIODevice *targetDevice, QObject *parent = nullptr);
~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 = nullptr;
QByteArray m_buffer;
qint64 m_bytesInBuffer = 0;
qint64 m_indexInBuffer = 0;
};
} // namespace qmt
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