Application: gvSIG desktop

/********************************************************

** Copyright 2003 Earth Resource Mapping Ltd.

** This document contains proprietary source code of

** Earth Resource Mapping Ltd, and can only be used under

** one of the three licenses as described in the

** license.txt file supplied with this distribution.

** See separate license.txt file for license details

** and conditions.

**

** This software is covered by US patent #6,442,298,

** #6,102,897 and #6,633,688.  Rights to use these patents

** is included in the license agreements.

**

** FILE:     $Archive: /NCS/Source/include/NCSJPCDCShiftNode.h $

** CREATED:  20/03/2003 3:27:34 PM

** AUTHOR:   Simon Cope

** PURPOSE:  CNCSJPCDCShiftNode class header

** EDITS:    [xx] ddMmmyy NAME COMMENTS

 *******************************************************/

#ifndef NCSJPCDCSHIFTNODE_H

#define NCSJPCDCSHIFTNODE_H

#ifndef NCSJPCNODE_H

#include "NCSJPCNode.h"

#endif // NCSJPCNODE_H

        /**

         * NCSJPCDCSHIFTNODE_H class - DC level shifting.

         *

         * @author       Simon Cope

         * @version      $Revision$ $Author$ $Date$

         */

class NCSJPC_EXPORT_ALL CNCSJPCDCShiftNode: public CNCSJPCNode {

public:

                /** Default constructor, initialises members */

        CNCSJPCDCShiftNode();

                /** Virtual destructor */

        virtual ~CNCSJPCDCShiftNode();

                /**

                 * Initialise this node.

                 * @param                nCtx                Read context

                 * @param                JPC                        CNCSJPC instance

                 * @param                iComponent        Index of component this node is for.

                 * @return      bool                true on success, else false on error.

                 */

        virtual bool Init(ContextID nCtx, class CNCSJPC &JPC, UINT16 iComponent);

                /**

                 * Read a BufferType line from the input.

                 * @param                nCtx                Read context

                 * @param                pDst                Destination buffer.

                 * @param                iComponent        Output Component

                 * @return      bool                true on succes, else false.

                 */

        virtual bool ReadLine(ContextID nCtx, CNCSJPCBuffer *pDst, UINT16 iComponent);

protected:

        static CNCSJPCNodeTracker        sm_Tracker;

        class NCSJPC_EXPORT_ALL Context: public CNCSJPCNode::Context {

        public:

                UINT8        m_nSsiz;

                virtual ~Context() {};

        };

                /**

                 * Get the context for the given ContextID

                 * @param                nCtx                ContextID to retrive context

                 * @param                bAutoConstruct Autoconstruct a new context for this ContextID if one doesn't exist

                 * @return                Context*        Context for given ID.

                 */

        virtual CNCSJPCNode::Context *GetContext(ContextID nCtx, bool bAutoConstruct = true);

};

#endif // !NCSJPCDCSHIFTNODE_H