// $Revision: 1.3 $
// Copyright (c) 1994-1995 Taligent, Inc.  All rights reserved.

#ifndef TaligentSamples_STREAMEXAMPLE
#define TaligentSamples_STREAMEXAMPLE

#ifndef Taligent_TEXT
#include <Taligent/Text.h>
#endif

#ifndef SAMPLE_NEWVERSION

// Illustrate streaming and version compatibility.  This is the old version.
// You may compile it by changing the flag in the .PinkMake file and 
// rebuilding the project.

class TStreamExample {
public:
TaligentTypeExtensionDeclarationsMacro(TStreamExample)

    enum EEnum { kOne, kTwo };
                        TStreamExample(int, EEnum, const TText&);
                        TStreamExample(const TStreamExample&);
    virtual             ~TStreamExample();
    TStreamExample&     operator=(const TStreamExample&);
    
    virtual TStream&    operator>>=(TStream&) const;
    virtual TStream&    operator<<=(TStream&);
    
    const TText*        GetText() const;

protected:
                        TStreamExample();

private:
    int                 fInt;
    EEnum               fEnum;
    TText*              fText;
    TText*              fCache;
    
    enum EVersion { kOriginalVersion };
};

#else

// This is the new version.  It removes the enum from the old version, and adds a 
// TGlobalID.  It is backwards compatible with the old version.

#ifndef Taligent_GLOBALID
#include <Taligent/GlobalID.h>
#endif

class TStreamExample {
public:
TaligentTypeExtensionDeclarationsMacro(TStreamExample)

                        TStreamExample(int, const TText&);
                        TStreamExample(const TStreamExample&);
    virtual             ~TStreamExample();
    TStreamExample&     operator=(const TStreamExample&);
    
    virtual TStream&    operator>>=(TStream&) const;
    virtual TStream&    operator<<=(TStream&);

    const TText*        GetText() const;

protected:
                        TStreamExample();

private:
    enum EEnum { kOne, kTwo };

    int                 fInt;
    TGlobalID           fID;
    TText*              fText;
    TText*              fCache;
    
    enum EVersion { kOriginalVersion, kVersion2 };
};

#endif // SAMPLE_NEWVERSION

#endif // TaligentSamples_STREAMEXAMPLE