CCControlPotentiometer* CCControlPotentiometer::create(const char* backgroundFile, const char* progressFile, const char* thumbFile)
{
    CCControlPotentiometer* pRet = new CCControlPotentiometer();
    if (pRet != NULL)
    {
        // Prepare track for potentiometer
        CCSprite *backgroundSprite      = CCSprite::create(backgroundFile);

        // Prepare thumb for potentiometer
        CCSprite *thumbSprite           = CCSprite::create(thumbFile);

        // Prepare progress for potentiometer
        CCProgressTimer *progressTimer  = CCProgressTimer::create(CCSprite::create(progressFile));
        //progressTimer.type              = kCCProgressTimerTypeRadialCW;
        if (pRet->initWithTrackSprite_ProgressTimer_ThumbSprite(backgroundSprite, progressTimer, thumbSprite))
        {
            pRet->autorelease();
        }
        else
        {
            CC_SAFE_DELETE(pRet);
        }
    }
    return pRet;
}