// $Revision: 1.3 $
// Copyright (c) 1994-1995 Taligent, Inc. All Rights Reserved.
// Notification sample 5

#ifndef TaligentSamples_VALUERECEIVER
#include "ValueReceiver.h"
#endif

#ifndef Taligent_ASSERTIONS
#include <Taligent/Assertions.h>
#endif

#ifndef TaligentSamples_LONGNOTIFICATION
#include "LongNotification.h"
#endif

// ========================================================================================

VersionDefinitionsMacro(TValueReceiver, kOriginalVersion);

TValueReceiver::TValueReceiver(TSender* sender, long value)
    : fSender(sender), 
    fConnection(this, &TValueReceiver::HandleValueNotification),
    fValue(value)
{
    Assertion(fSender != NIL, "Must have sender.");

    fConnection.AddInterest(fSender->GetValueInterest(value));
    fConnection.Connect();
}

TValueReceiver::~TValueReceiver()
{
}

long
TValueReceiver::GetValue() const
{
    return fValue;
}

void
TValueReceiver::SetValue(long value)
{
    if (value != fValue) {
        fConnection.RemoveInterest(fSender->GetValueInterest(fValue));
        fValue = value;
        fConnection.AddInterest(fSender->GetValueInterest(fValue));
    }
}

void TValueReceiver::HandleValueNotification(const TNotification&)
{
    qprintf("Value receiver notified of value: %d\n", fValue);
}