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1 files changed, 141 insertions, 0 deletions

diff --git a/src/client/vnc/vncthread.h b/src/client/vnc/vncthread.h
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+++ b/src/client/vnc/vncthread.h
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+/*
+ # Copyright (c) 2009, 2010 - OpenSLX Project, Computer Center University of
+ # Freiburg
+ #
+ # This program is free software distributed under the GPL version 2.
+ # See http://openslx.org/COPYING
+ #
+ # If you have any feedback please consult http://openslx.org/feedback and
+ # send your suggestions, praise, or complaints to feedback@openslx.org
+ #
+ # General information about OpenSLX can be found at http://openslx.org/
+ */
+
+#ifndef VNCCLIENTTHREAD_H_
+#define VNCCLIENTTHREAD_H_
+
+#include <QtCore>
+#include <QImage>
+#include <QThread>
+
+class QPainter;
+
+extern "C"
+{
+#include <rfb/rfbclient.h>
+}
+
+/**
+ * - START -
+ * Event classes. Not my code. Might be useful to implement remote assistance via VNC later.
+ * Code might come from the KDE VNC client.
+ */
+class SomeEvent
+{
+public:
+	virtual ~SomeEvent(){}
+	virtual void fire(rfbClient*) = 0;
+};
+
+class KeyEvent : public SomeEvent
+{
+public:
+	KeyEvent(int key, int pressed) :
+		_key(key), _pressed(pressed)
+	{
+	}
+
+	void fire(rfbClient*);
+
+private:
+	int _key;
+	int _pressed;
+};
+
+class PointerEvent : public SomeEvent
+{
+public:
+	PointerEvent(int x, int y, int buttonMask) :
+		_x(x), _y(y), _buttonMask(buttonMask)
+	{
+	}
+
+	void fire(rfbClient*);
+
+private:
+	int _x;
+	int _y;
+	int _buttonMask;
+};
+/** - END - **/
+
+/**
+ * VncThread - communicate with VNC server, scale image if necessary.
+ *
+ * As this class is derived from QThread and overrides the run() method,
+ * it does not have an event-loop. Do NOT try to add any slots to it.
+ * It will NOT be able to receive signals. Emitting signals is fine though.
+ */
+class VncThread : public QThread
+{
+Q_OBJECT
+
+private:
+	rfbClient *_client;
+	quint8 *_frameBuffer;
+
+	QString _host;
+	int _port;
+	QString _passwd;
+	int _quality;
+	QQueue<SomeEvent*> _eventQueue;
+
+	QPainter *_painter;
+	QImage _img;
+	QImage _imgScaled;
+	QSize _clientSize;
+	QSize _localSize;
+	QMutex _mutex;
+
+	QSize _newLocalSize;
+	volatile bool _hasNewLocalSize;
+
+	int _srcStepX, _srcStepY, _dstStepX, _dstStepY;
+
+	bool _connected;
+	volatile bool _run;
+
+	void calcScaling();
+
+	// Callbacks for rfb lib. make them class members so the callbacks can access private members of the class.
+	static void updateImage(rfbClient *client, int x, int y, int w, int h);
+	static char* passwdHandler(rfbClient *client);
+	static rfbBool frameBufferHandler(rfbClient *client);
+
+public:
+	VncThread(QString host, int port, QString passwd, int quality);
+	// Do NOT delete this class directly. use VncThread::destroy() instead!
+	~VncThread();
+
+	const QImage& getImage() const { if (_srcStepX > 1 || _srcStepY > 1) return _imgScaled; return _img; }
+	const QSize& getSourceSize() const { return _clientSize; }
+	const QString getDesktopName() const;
+	void processImageUpdate(const int x, const int y, const int w, const int h);
+	void mouseEvent(int x, int y, int buttonMask);
+	void keyEvent(int key, bool pressed);
+	const bool isConnected() const { return _connected; }
+	void stop() { _run = false; }
+	void setTargetSize(const QSize size);
+	void run();
+
+	int const static HIGH = 0;
+	int const static MEDIUM = 1;
+	int const static LOW = 2;
+
+signals:
+	void imageUpdated(const int x, const int y, const int w, const int h);
+	void projectionStarted();
+
+};
+
+#endif /* VNCCLIENTTHREAD_H_ */