1 files changed, 174 insertions, 0 deletions
diff --git a/nxcomp/ClearArea.h b/nxcomp/ClearArea.h
new file mode 100755
index 000000000..a18a9035f
--- /dev/null
+++ b/nxcomp/ClearArea.h
@@ -0,0 +1,174 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef ClearArea_H
+#define ClearArea_H
+
+#include "Message.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  DUMP
+
+//
+// Set default values.
+//
+
+#define CLEARAREA_ENABLE_CACHE               1
+#define CLEARAREA_ENABLE_DATA                0
+#define CLEARAREA_ENABLE_SPLIT               0
+#define CLEARAREA_ENABLE_COMPRESS            0
+
+#define CLEARAREA_DATA_LIMIT                 0
+#define CLEARAREA_DATA_OFFSET                16
+
+#define CLEARAREA_CACHE_SLOTS                3000
+#define CLEARAREA_CACHE_THRESHOLD            5
+#define CLEARAREA_CACHE_LOWER_THRESHOLD      1
+
+//
+// The message class.
+//
+
+class ClearAreaMessage : public Message
+{
+  friend class ClearAreaStore;
+
+  public:
+
+  ClearAreaMessage()
+  {
+  }
+
+  ~ClearAreaMessage()
+  {
+  }
+
+  //
+  // Put here the fields which constitute 
+  // the 'identity' part of the message.
+  //
+
+  private:
+
+  unsigned char  exposures;
+  unsigned int   window;
+  unsigned short x;
+  unsigned short y;
+  unsigned short width;
+  unsigned short height;
+};
+
+class ClearAreaStore : public MessageStore
+{
+  //
+  // Constructors and destructors.
+  //
+
+  public:
+
+  ClearAreaStore() : MessageStore()
+  {
+    enableCache    = CLEARAREA_ENABLE_CACHE;
+    enableData     = CLEARAREA_ENABLE_DATA;
+    enableSplit    = CLEARAREA_ENABLE_SPLIT;
+    enableCompress = CLEARAREA_ENABLE_COMPRESS;
+
+    dataLimit  = CLEARAREA_DATA_LIMIT;
+    dataOffset = CLEARAREA_DATA_OFFSET;
+
+    cacheSlots          = CLEARAREA_CACHE_SLOTS;
+    cacheThreshold      = CLEARAREA_CACHE_THRESHOLD;
+    cacheLowerThreshold = CLEARAREA_CACHE_LOWER_THRESHOLD;
+
+    messages_ -> resize(cacheSlots);
+
+    for (T_messages::iterator i = messages_ -> begin();
+             i < messages_ -> end(); i++)
+    {
+      *i = NULL;
+    }
+
+    temporary_ = NULL;
+  }
+
+  virtual ~ClearAreaStore()
+  {
+    for (T_messages::iterator i = messages_ -> begin();
+             i < messages_ -> end(); i++)
+    {
+      destroy(*i);
+    }
+
+    destroy(temporary_);
+  }
+
+  virtual const char *name() const
+  {
+    return "ClearArea";
+  }
+
+  virtual unsigned char opcode() const
+  {
+    return X_ClearArea;
+  }
+
+  virtual unsigned int storage() const
+  {
+    return sizeof(ClearAreaMessage);
+  }
+
+  //
+  // Message handling methods.
+  //
+
+  public:
+
+  virtual Message *create() const
+  {
+    return new ClearAreaMessage();
+  }
+
+  virtual Message *create(const Message &message) const
+  {
+    return new ClearAreaMessage((const ClearAreaMessage &) message);
+  }
+
+  virtual void destroy(Message *message) const
+  {
+    delete (ClearAreaMessage *) message;
+  }
+
+  virtual int parseIdentity(Message *message, const unsigned char *buffer,
+                                unsigned int size, int bigEndian) const;
+
+  virtual int unparseIdentity(const Message *message, unsigned char *buffer,
+                                  unsigned int size, int bigEndian) const;
+
+  virtual void identityChecksum(const Message *message, const unsigned char *buffer,
+                                    unsigned int size, int bigEndian) const;
+
+  virtual void dumpIdentity(const Message *message) const;
+};
+
+#endif /* ClearArea_H */