alarmtimer.cpp

来自「《基于Symbian OS的手机开发与应用实践》这本书的配套源码。」· C++ 代码 · 共 70 行

/*
* ============================================================================
*  Name     : CAlarmTimer from AlarmTimer.cpp
*  Part of  : Alarm
*  Created  : 05.02.2006 by ToBeReplacedByAuthor
*  Implementation notes:
*     
*  Version  :
*  Copyright: ToBeReplacedByCopyright
* ============================================================================
*/

// INCLUDES
#include "AlarmTimer.h"

// public standard construction sequence
CAlarmTimer* CAlarmTimer::NewL(MObserver& aObserver)
    {
    CAlarmTimer* self = CAlarmTimer::NewLC(aObserver);
    CleanupStack::Pop();
    return self;
    }

CAlarmTimer* CAlarmTimer::NewLC(MObserver& aObserver)
    {
    CAlarmTimer* self = new (ELeave) CAlarmTimer(aObserver);
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
    }

CAlarmTimer::~CAlarmTimer()
    {
    // No implementation required
    }

// public new functions
void CAlarmTimer::Start(const TTime& aTime)
    {
    Cancel();
    At(aTime);
    }

void CAlarmTimer::Stop()
    {
    Cancel();
    }

// private standard construction sequence
CAlarmTimer::CAlarmTimer(MObserver& aObserver)
:CTimer(EPriorityStandard),iObserver(aObserver)
    {
    // No implementation required
    }

void CAlarmTimer::ConstructL()
    {
    //this is explicitly decareded in the CTimer document
    CTimer::ConstructL();

    // The following line is also essential!
    CActiveScheduler::Add(this);
    }

// private from CTimer
void CAlarmTimer::RunL()
    {
    iObserver.OnTimerL(iStatus.Int());
    }