lti_metadataRecord.h

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/* $Id$ */
/* //////////////////////////////////////////////////////////////////////////
//                                                                         //
// This code is Copyright (c) 2004 LizardTech, Inc, 1008 Western Avenue,   //
// Suite 200, Seattle, WA 98104.  Unauthorized use or distribution         //
// prohibited.  Access to and use of this code is permitted only under     //
// license from LizardTech, Inc.  Portions of the code are protected by    //
// US and foreign patents and other filings. All Rights Reserved.          //
//                                                                         //
/* PUBLIC */

#ifndef LTIMETADATARECORD_H
#define LTIMETADATARECORD_H

// lt_lib_base
#include "lt_base.h"

// lt_lib_mrsid_metadata
#include "lti_metadataTypes.h"

LT_BEGIN_NAMESPACE(LizardTech)

#if defined(LT_COMPILER_MS)
   #pragma warning(push,4)
#endif


class LTIMetadataRecord
{
public:
   LTIMetadataRecord(LTIMetadataTag tag,
                     LTIMetadataDataType type,
                     const void* data);

   LTIMetadataRecord(const char* tagName,
                     LTIMetadataDataType type,
                     const void* data);
   
   LTIMetadataRecord(LTIMetadataTag tag,
                     LTIMetadataDataType type,
                     const void* data,
                     lt_uint32 vecLen);
   LTIMetadataRecord(const char* tagName,
                     LTIMetadataDataType type,
                     const void* data,
                     lt_uint32 vecLen);

   LTIMetadataRecord(LTIMetadataTag tag,
                     LTIMetadataDataType type,
                     const void* data,
                     lt_uint32 numDims,
                     const lt_uint32* dims);

   LTIMetadataRecord(const char* tagName,
                     LTIMetadataDataType type,
                     const void* data,
                     lt_uint32 numDims,
                     const lt_uint32* dims);

   LTIMetadataRecord(const LTIMetadataRecord&);

   ~LTIMetadataRecord();

   LTIMetadataTag getTag() const;

   const char* getTagName() const;

   LTIMetadataDataType getDataType() const;

   lt_uint32 getNumDims() const;

   const lt_uint32* getDims() const;
   lt_uint32 getNumValues(void) const;

   bool isScalar() const;

   bool isVector() const;

   bool isArray() const;

   const void* getScalarData() const;

   const void* getVectorData(lt_uint32& vecLen) const;

   const void* getArrayData(lt_uint32& numDims, const lt_uint32*& dims) const;

   lt_int32 getApproximateSize() const;

private:
   void initialize(LTIMetadataTag tag,
                   const void* data, const lt_uint32* dims);
   void initialize(const char* tagName,
                   const void* data, const lt_uint32* dims);

   lt_uint32 computeLen() const;

   char* m_tagName;
   LTIMetadataDataType m_type;
   lt_uint32 m_numDims;
   lt_uint32* m_dims;
   lt_uint8* m_data;
   
   // nope
   LTIMetadataRecord& operator=(const LTIMetadataRecord&);
};


LT_END_NAMESPACE(LizardTech)

#if defined(LT_COMPILER_MS)
   #pragma warning(pop)
#endif

#endif // LTIMETADATARECORD_H