2010-05-08 22:56:39 +02:00
|
|
|
/****************************************************************************
|
|
|
|
**
|
|
|
|
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
|
|
** All rights reserved.
|
|
|
|
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
|
|
**
|
|
|
|
** This file is part of a Qt Solutions component.
|
|
|
|
**
|
|
|
|
** Commercial Usage
|
|
|
|
** Licensees holding valid Qt Commercial licenses may use this file in
|
|
|
|
** accordance with the Qt Solutions Commercial License Agreement provided
|
|
|
|
** with the Software or, alternatively, in accordance with the terms
|
|
|
|
** contained in a written agreement between you and Nokia.
|
|
|
|
**
|
|
|
|
** 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 as published by the Free Software
|
|
|
|
** Foundation and appearing in the file LICENSE.LGPL included in the
|
|
|
|
** packaging of this file. Please review the following information to
|
|
|
|
** ensure the GNU Lesser General Public License version 2.1 requirements
|
|
|
|
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
|
|
**
|
|
|
|
** In addition, as a special exception, Nokia gives you certain
|
|
|
|
** additional rights. These rights are described in the Nokia Qt LGPL
|
|
|
|
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
|
|
|
|
** package.
|
|
|
|
**
|
|
|
|
** GNU General Public License Usage
|
|
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
|
|
** General Public License version 3.0 as published by the Free Software
|
|
|
|
** Foundation and appearing in the file LICENSE.GPL included in the
|
|
|
|
** packaging of this file. Please review the following information to
|
|
|
|
** ensure the GNU General Public License version 3.0 requirements will be
|
|
|
|
** met: http://www.gnu.org/copyleft/gpl.html.
|
|
|
|
**
|
|
|
|
** Please note Third Party Software included with Qt Solutions may impose
|
|
|
|
** additional restrictions and it is the user's responsibility to ensure
|
|
|
|
** that they have met the licensing requirements of the GPL, LGPL, or Qt
|
|
|
|
** Solutions Commercial license and the relevant license of the Third
|
|
|
|
** Party Software they are using.
|
|
|
|
**
|
|
|
|
** If you are unsure which license is appropriate for your use, please
|
|
|
|
** contact Nokia at qt-info@nokia.com.
|
|
|
|
**
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifndef QTIOCOMPRESSOR_H
|
|
|
|
#define QTIOCOMPRESSOR_H
|
|
|
|
|
|
|
|
#include <QtCore/QIODevice>
|
|
|
|
|
2018-11-17 15:08:37 +01:00
|
|
|
#if defined(Q_OS_WIN)
|
2010-05-08 22:56:39 +02:00
|
|
|
# if !defined(QT_QTIOCOMPRESSOR_EXPORT) && !defined(QT_QTIOCOMPRESSOR_IMPORT)
|
|
|
|
# define QT_QTIOCOMPRESSOR_EXPORT
|
|
|
|
# elif defined(QT_QTIOCOMPRESSOR_IMPORT)
|
|
|
|
# if defined(QT_QTIOCOMPRESSOR_EXPORT)
|
|
|
|
# undef QT_QTIOCOMPRESSOR_EXPORT
|
|
|
|
# endif
|
|
|
|
# define QT_QTIOCOMPRESSOR_EXPORT __declspec(dllimport)
|
|
|
|
# elif defined(QT_QTIOCOMPRESSOR_EXPORT)
|
|
|
|
# undef QT_QTIOCOMPRESSOR_EXPORT
|
|
|
|
# define QT_QTIOCOMPRESSOR_EXPORT __declspec(dllexport)
|
|
|
|
# endif
|
|
|
|
#else
|
|
|
|
# define QT_QTIOCOMPRESSOR_EXPORT
|
|
|
|
#endif
|
|
|
|
|
|
|
|
class QtIOCompressorPrivate;
|
|
|
|
class QT_QTIOCOMPRESSOR_EXPORT QtIOCompressor : public QIODevice
|
|
|
|
{
|
|
|
|
Q_OBJECT
|
|
|
|
public:
|
|
|
|
enum StreamFormat { ZlibFormat, GzipFormat, RawZipFormat };
|
|
|
|
QtIOCompressor(QIODevice *device, int compressionLevel = 6, int bufferSize = 65500);
|
|
|
|
~QtIOCompressor();
|
|
|
|
void setStreamFormat(StreamFormat format);
|
|
|
|
StreamFormat streamFormat() const;
|
|
|
|
static bool isGzipSupported();
|
|
|
|
bool isSequential() const;
|
|
|
|
bool open(OpenMode mode);
|
|
|
|
void close();
|
|
|
|
void flush();
|
|
|
|
qint64 bytesAvailable() const;
|
|
|
|
protected:
|
|
|
|
qint64 readData(char * data, qint64 maxSize);
|
|
|
|
qint64 writeData(const char * data, qint64 maxSize);
|
|
|
|
private:
|
|
|
|
static bool checkGzipSupport(const char * const versionString);
|
|
|
|
QtIOCompressorPrivate *d_ptr;
|
|
|
|
Q_DECLARE_PRIVATE(QtIOCompressor)
|
|
|
|
Q_DISABLE_COPY(QtIOCompressor)
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|