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// Copyright (C) 2016 Jochen Becher
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#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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