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common/rfb/CMsgHandler.h

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+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2009-2011 Pierre Ossman for Cendio AB
+ * Copyright (C) 2011 D. R. Commander.  All Rights Reserved.
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+//
+// CMsgHandler - class to handle incoming messages on the client side.
+//
+
+#ifndef __RFB_CMSGHANDLER_H__
+#define __RFB_CMSGHANDLER_H__
+
+#include <rdr/types.h>
+#include <rfb/Pixel.h>
+#include <rfb/ConnParams.h>
+#include <rfb/Rect.h>
+#include <rfb/ScreenSet.h>
+
+namespace rdr { class InStream; }
+
+namespace rfb {
+
+  class CMsgHandler {
+  public:
+    CMsgHandler();
+    virtual ~CMsgHandler();
+
+    // The following methods are called as corresponding messages are read.  A
+    // derived class should override these methods as desired.  Note that for
+    // the setDesktopSize(), setExtendedDesktopSize(), setPixelFormat() and
+    // setName() methods, a derived class should call on to CMsgHandler's
+    // methods to set the members of cp appropriately.
+
+    virtual void setDesktopSize(int w, int h);
+    virtual void setExtendedDesktopSize(unsigned reason, unsigned result,
+                                        int w, int h,
+                                        const ScreenSet& layout);
+    virtual void setCursor(int width, int height, const Point& hotspot,
+                           const rdr::U8* data) = 0;
+    virtual void setPixelFormat(const PixelFormat& pf);
+    virtual void setName(const char* name);
+    virtual void fence(rdr::U32 flags, unsigned len, const char data[]);
+    virtual void endOfContinuousUpdates();
+    virtual void supportsQEMUKeyEvent();
+    virtual void serverInit() = 0;
+
+    virtual void readAndDecodeRect(const Rect& r, int encoding,
+                                   ModifiablePixelBuffer* pb) = 0;
+
+    virtual void framebufferUpdateStart();
+    virtual void framebufferUpdateEnd();
+    virtual void dataRect(const Rect& r, int encoding) = 0;
+
+    virtual void setColourMapEntries(int firstColour, int nColours,
+				     rdr::U16* rgbs) = 0;
+    virtual void bell() = 0;
+    virtual void serverCutText(const char* str, rdr::U32 len) = 0;
+
+    virtual void setLEDState(unsigned int state);
+
+    ConnParams cp;
+  };
+}
+#endif