/src/FreeImage/Source/OpenEXR/IlmImf/ImfOpaqueAttribute.h

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  2//
  3// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
  4// Digital Ltd. LLC
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 33///////////////////////////////////////////////////////////////////////////
 34
 35
 36
 37#ifndef INCLUDED_IMF_OPAQUE_ATTRIBUTE_H
 38#define INCLUDED_IMF_OPAQUE_ATTRIBUTE_H
 39
 40//-----------------------------------------------------------------------------
 41//
 42//	class OpaqueAttribute
 43//
 44//	When an image file is read, OpqaqueAttribute objects are used
 45//	to hold the values of attributes whose types are not recognized
 46//	by the reading program.  OpaqueAttribute objects can be read
 47//	from an image file, copied, and written back to to another image
 48//	file, but their values are inaccessible.
 49//
 50//-----------------------------------------------------------------------------
 51
 52#include <ImfAttribute.h>
 53#include <ImfArray.h>
 54
 55namespace Imf {
 56
 57
 58class OpaqueAttribute: public Attribute
 59{
 60  public:
 61
 62    //----------------------------
 63    // Constructors and destructor
 64    //----------------------------
 65
 66    OpaqueAttribute (const char typeName[]);
 67    OpaqueAttribute (const OpaqueAttribute &other);
 68    virtual ~OpaqueAttribute ();
 69
 70
 71    //-------------------------------
 72    // Get this attribute's type name
 73    //-------------------------------
 74
 75    virtual const char *	typeName () const;
 76    
 77
 78    //------------------------------
 79    // Make a copy of this attribute
 80    //------------------------------
 81
 82    virtual Attribute *		copy () const;
 83
 84
 85    //----------------
 86    // I/O and copying
 87    //----------------
 88
 89    virtual void		writeValueTo (OStream &os,
 90					      int version) const;
 91
 92    virtual void		readValueFrom (IStream &is,
 93					       int size,
 94					       int version);
 95
 96    virtual void		copyValueFrom (const Attribute &other);
 97
 98
 99  private:
100
101    Array<char>			_typeName;
102    long			_dataSize;
103    Array<char>			_data;
104};
105
106
107} // namespace Imf
108
109// Metrowerks compiler wants the .cpp file inlined, too
110#ifdef __MWERKS__
111#include <ImfOpaqueAttribute.cpp>
112#endif
113
114#endif