root/3rdparty/openexr/IlmImf/ImfOpaqueAttribute.h

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INCLUDED FROM


///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// *       Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// *       Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// *       Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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///////////////////////////////////////////////////////////////////////////



#ifndef INCLUDED_IMF_OPAQUE_ATTRIBUTE_H
#define INCLUDED_IMF_OPAQUE_ATTRIBUTE_H

//-----------------------------------------------------------------------------
//
//      class OpaqueAttribute
//
//      When an image file is read, OpqaqueAttribute objects are used
//      to hold the values of attributes whose types are not recognized
//      by the reading program.  OpaqueAttribute objects can be read
//      from an image file, copied, and written back to to another image
//      file, but their values are inaccessible.
//
//-----------------------------------------------------------------------------

#include <ImfAttribute.h>
#include <ImfArray.h>

namespace Imf {


class OpaqueAttribute: public Attribute
{
  public:

    //----------------------------
    // Constructors and destructor
    //----------------------------

    OpaqueAttribute (const char typeName[]);
    OpaqueAttribute (const OpaqueAttribute &other);
    virtual ~OpaqueAttribute ();


    //-------------------------------
    // Get this attribute's type name
    //-------------------------------

    virtual const char *        typeName () const;


    //------------------------------
    // Make a copy of this attribute
    //------------------------------

    virtual Attribute *         copy () const;


    //----------------
    // I/O and copying
    //----------------

    virtual void                writeValueTo (OStream &os,
                          int version) const;

    virtual void                readValueFrom (IStream &is,
                           int size,
                           int version);

    virtual void                copyValueFrom (const Attribute &other);


  private:

    Array<char>                 _typeName;
    long                        _dataSize;
    Array<char>                 _data;
};


} // namespace Imf

// Metrowerks compiler wants the .cpp file inlined, too
#ifdef __MWERKS__
#include <ImfOpaqueAttribute.cpp>
#endif

#endif

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