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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVNCCLIENT_H
#define QVNCCLIENT_H
#include <QObject>
#include "qvnc_p.h"
QT_BEGIN_NAMESPACE
class QTcpSocket;
class QVncServer;
class QVncClient : public QObject
{
Q_OBJECT
public:
enum ClientMsg {
SetPixelFormat = 0,
FixColourMapEntries = 1,
SetEncodings = 2,
FramebufferUpdateRequest = 3,
KeyEvent = 4,
PointerEvent = 5,
ClientCutText = 6
};
explicit QVncClient(QTcpSocket *clientSocket, QVncServer *server);
~QVncClient();
QTcpSocket *clientSocket() const;
QVncServer *server() const { return m_server; }
void setDirty(const QRegion ®ion);
void setDirtyCursor() { m_dirtyCursor = true; scheduleUpdate(); }
QRegion dirtyRegion() const { return m_dirtyRegion; }
inline bool isConnected() const { return m_state == Connected; }
inline int clientBytesPerPixel() const {
return m_pixelFormat.bitsPerPixel / 8;
}
void convertPixels(char *dst, const char *src, int count) const;
inline bool doPixelConversion() const { return m_needConversion; }
signals:
private slots:
void readClient();
void discardClient();
void checkUpdate();
void scheduleUpdate();
protected:
bool event(QEvent *event) override;
private:
enum ClientState {
Disconnected,
Protocol,
Authentication,
Init,
Connected
};
enum ProtocolVersion {
V3_3,
V3_7,
V3_8
};
void setPixelFormat();
void setEncodings();
void frameBufferUpdateRequest();
void pointerEvent();
void keyEvent();
void clientCutText();
bool pixelConversionNeeded() const;
QVncServer *m_server;
QTcpSocket *m_clientSocket;
QRfbEncoder *m_encoder;
// Client State
ClientState m_state;
quint8 m_msgType;
bool m_handleMsg;
QRfbPixelFormat m_pixelFormat;
bool m_sameEndian;
bool m_needConversion;
int m_encodingsPending;
int m_cutTextPending;
uint m_supportCopyRect : 1;
uint m_supportRRE : 1;
uint m_supportCoRRE : 1;
uint m_supportHextile : 1;
uint m_supportZRLE : 1;
uint m_supportCursor : 1;
uint m_supportDesktopSize : 1;
bool m_wantUpdate;
Qt::KeyboardModifiers m_keymod;
bool m_dirtyCursor;
bool m_updatePending;
#if Q_BYTE_ORDER == Q_BIG_ENDIAN
bool m_swapBytes;
#endif
QRegion m_dirtyRegion;
ProtocolVersion m_protocolVersion;
};
QT_END_NAMESPACE
#endif // QVNCCLIENT_H
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