audio1eng.cpp

symbian,uiq 2.0以上平台运行

/* Copyright (c) 2004, Symbian Software Ltd. All rights reserved */

#ifndef __Audio1ENG_H_
#define __Audio1ENG_H_

#include "Audio1eng.h"
#include "Audio1Ui.h"
#include "Audio1.hrh"

CAudio1Engine::CAudio1Engine(CAudio1Ui& aAppUi) : 
    iState(ENotReady),
    iAppUi(aAppUi)
    {
    }

CAudio1Engine* CAudio1Engine::NewL(CAudio1Ui& aAppUi)
    {
    CAudio1Engine* self = NewLC(aAppUi);
    CleanupStack::Pop();  // self
    return self;
    }

CAudio1Engine* CAudio1Engine::NewLC(CAudio1Ui& aAppUi)
    {
    CAudio1Engine* self = new (ELeave) CAudio1Engine(aAppUi);
    CleanupStack::PushL(self);
    self->ConstructL();
    return self;
    }

void CAudio1Engine::ConstructL()
    {
    }

void CAudio1Engine::SetFileL(const TDesC& aFileName)
    {
    if (iUtility)
        delete iUtility;

    iUtility = CMdaAudioPlayerUtility::NewFilePlayerL(aFileName, *this);
    }

CAudio1Engine::~CAudio1Engine()
    {
    delete iUtility;    
    iUtility = NULL;
    }

void CAudio1Engine::MapcInitComplete(TInt aError, const TTimeIntervalMicroSeconds& /*aDuration*/)
    {
    if (aError==KErrNone)
        {
        iState=EReady;
        iAppUi.UpdateViewL();
        }
    }

void CAudio1Engine::MapcPlayComplete(TInt /*aError*/)
    {
    iState=EReady;
    }

void CAudio1Engine::PlayL()
    {
    iUtility->Play();
    iState=EPlaying;
    }

void CAudio1Engine::StopL()
    {
    iUtility->Stop();
    iState=EReady;
    }

void CAudio1Engine::UpdateMenu(CEikMenuPane* aMenuPane)
    {
    switch(iState)
        {
        case ENotReady:
            aMenuPane->SetItemDimmed(ECmdOpenFile, EFalse);
            aMenuPane->SetItemDimmed(ECmdPlay, ETrue);
            aMenuPane->SetItemDimmed(ECmdStop, ETrue);
            break;

        case EReady:
            aMenuPane->SetItemDimmed(ECmdOpenFile, EFalse);
            aMenuPane->SetItemDimmed(ECmdPlay, EFalse);
            aMenuPane->SetItemDimmed(ECmdStop, ETrue);
            break;

        case EPlaying:
            aMenuPane->SetItemDimmed(ECmdOpenFile, ETrue);
            aMenuPane->SetItemDimmed(ECmdPlay, ETrue);
            aMenuPane->SetItemDimmed(ECmdStop, EFalse);
            break;
        }
    }

#endif// __Audio1ENG_H_