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

#ifndef TaligentSamples_KEYFILTERBEHAVIOR
#define TaligentSamples_KEYFILTERBEHAVIOR

#ifndef Taligent_KEYBOARDINPUT
#include <Taligent/KeyboardInput.h>
#endif

#ifndef Taligent_STANDARDTEXT
#include <Taligent/StandardText.h>
#endif

#ifndef Taligent_TYPINGCONFIGURATION
#include <Taligent/TypingConfiguration.h>
#endif

// Restrict input to keys that result in unicode values latin T,a,l,i,g,e,n,t.

class TKeyFilterBehavior : public MEventTarget, public MKeyEventHandler {
public:
    MCollectibleDeclarationsMacro(TKeyFilterBehavior);
    
                            TKeyFilterBehavior();
                            TKeyFilterBehavior(const TKeyFilterBehavior&);
    virtual                 ~TKeyFilterBehavior();
    TKeyFilterBehavior&     operator=(const TKeyFilterBehavior&);
    
    virtual TStream&        operator>>=(TStream&) const;
    virtual TStream&        operator<<=(TStream&);
    
    virtual bool            KeyDown(TKeyDownEvent& event);
    
private:
    TTypingConfigurationHandle  fTypingConfiguration;
    
    enum EVersion { kOriginalVersion };
};

#endif // TaligentSamples_KEYFILTERBEHAVIOR