examples/SFExamples/games_on_symbian_os_code/vibrapool/src/moveball.cpp

// 
// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
// 
// Initial Contributors:
// Nokia Corporation - initial contribution.
// 
// Contributors:
// 
// Description:  Class to animate the pool ball on the pool table.
// 
// 


#include "moveball.h"

const TInt KGenerationInterval = 10000;


CMoveBall* CMoveBall::NewL(MUpdateContainer& aUpdater)
        {
        CMoveBall* self = new (ELeave) CMoveBall(aUpdater);
        CleanupStack::PushL(self);
        self->ConstructL();
        CleanupStack::Pop();
        return self;
        }

CMoveBall::CMoveBall(MUpdateContainer& aUpdater) : 
                                                                CTimer(CActive::EPriorityStandard),
                                                                iUpdater(aUpdater)
        {       
        }
        
CMoveBall::~CMoveBall()
        {
    if(IsActive())
            Cancel();
        }
        
void CMoveBall::ConstructL()
        {
        // Contruct the timer and add this class to the active schedular to
        // manage its asynchronous behavior.
        CTimer::ConstructL();
        CActiveScheduler::Add(this);    
        }

void CMoveBall::StartMovingBall()
        {
        // Give a 10 millisecond interval between consecutive screen updates
        After(TTimeIntervalMicroSeconds32(0));
        }

void CMoveBall::StopMoveBall()
        {
        // Check if the animation is active and running via the timer
        if(IsActive())
                {
                CTimer::Cancel();       
                Cancel();       
                }
        }
        
void CMoveBall::RunL()
        {
        // Give a 10 millisecond interval between consecutive screen updates
        After(TTimeIntervalMicroSeconds32(KGenerationInterval));
        // A callback to update the screen in the view class
        iUpdater.UpdateScreen();
        }

void CMoveBall::DoCancel()
        {
        CTimer::DoCancel();     
        }

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