attribute.h

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00001 //
00002 //  Copyright (c) 1996-2006 by Autodesk, Inc.
00003 //
00004 //  By using this code, you are agreeing to the terms and conditions of
00005 //  the License Agreement included in the documentation for this code.
00006 //
00007 //  AUTODESK MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AS TO THE CORRECTNESS
00008 //  OF THIS CODE OR ANY DERIVATIVE WORKS WHICH INCORPORATE IT. AUTODESK
00009 //  PROVIDES THE CODE ON AN "AS-IS" BASIS AND EXPLICITLY DISCLAIMS ANY
00010 //  LIABILITY, INCLUDING CONSEQUENTIAL AND INCIDENTAL DAMAGES FOR ERRORS,
00011 //  OMISSIONS, AND OTHER PROBLEMS IN THE CODE.
00012 //
00013 //  Use, duplication, or disclosure by the U.S. Government is subject to
00014 //  restrictions set forth in FAR 52.227-19 (Commercial Computer Software
00015 //  Restricted Rights) and DFAR 252.227-7013(c)(1)(ii) (Rights in Technical
00016 //  Data and Computer Software), as applicable.
00017 //
00018 
00019 #if !defined ATTRIBUTE_HEADER
00020 #define ATTRIBUTE_HEADER
00021 
00025 
00026 #include "whiptk/whipcore.h"
00027 #include "whiptk/object.h"
00028 
00029 class WT_File;
00030 
00032 
00040 class WHIPTK_API WT_Attribute : public WT_Object
00041 {
00042         friend class WT_Class_Factory;
00043         friend class WT_DeprecatedClassFactory;
00044 protected:
00046     WT_Attribute ()
00047     { }
00048 
00050     virtual ~WT_Attribute ()
00051     { }
00052 
00053 public:
00055     virtual WT_Type    object_type() const;
00056 
00058 
00061     virtual WT_Result        serialize (WT_File & file) const = 0;
00062 
00064 
00069     virtual WT_Result    sync(
00070         WT_File & file 
00071         ) const = 0;
00072 
00074     virtual WT_Boolean operator==(WT_Attribute const & attrib) const = 0;
00075 
00077     WT_Boolean operator!=(WT_Attribute const & attrib) const
00078     {
00079         return !(*this == attrib);
00080     }
00081 };
00082 
00083 #endif // ATTRIBUTE_HEADER

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