/*

* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:  This class reads the resource file and provides access to the

*               information read from the resource file.

*

*/

// INCLUDE FILES

#include <f32file.h>

#include <barsc.h>

#include <bautils.h>

#include <barsread.h>

#include "devasrresourcehandler.h"

#include <nssdevasr.rsg>

#include "rubydebug.h"

#include <data_caging_path_literals.hrh>

// LOCAL CONSTANTS AND MACROS

_LIT( KResourceFileName, "nssdevasr.rsc" );

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CDevASRResourceHandler::CDevASRResourceHandler

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CDevASRResourceHandler::CDevASRResourceHandler()

    {

    }

// -----------------------------------------------------------------------------

// CDevASRResourceHandler::ConstructL

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CDevASRResourceHandler::ConstructL()

    {

    RUBY_DEBUG_BLOCK( "CDevASRResourceHandler::ConstructL()" );

    ReadResourceFileL();

    }

// -----------------------------------------------------------------------------

// CDevASRResourceHandler::NewL

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CDevASRResourceHandler* CDevASRResourceHandler::NewL()

    {

    CDevASRResourceHandler* self = new ( ELeave ) CDevASRResourceHandler();

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop(); // Self

    return self;

    }

// Destructor

CDevASRResourceHandler::~CDevASRResourceHandler()

    {

    }

// -----------------------------------------------------------------------------

// CDevASRResourceHandler::ReadResourceFileL

// Reads the data from the resource file.

// -----------------------------------------------------------------------------

//

void CDevASRResourceHandler::ReadResourceFileL()

    {

    RUBY_DEBUG_BLOCK( "CDevASRResourceHandler::ReadResourceFileL()" );

    // letters for drives in search order

    const TBuf<2> KResourceDrives = _L("cz"); 

    // load resources

    RResourceFile resourceFile;

    RFs fs;

    User::LeaveIfError( fs.Connect() );

    CleanupClosePushL( fs );

    TFileName name;

    TInt i( 0 );

    // try to find from the first driver

    name.Append( KResourceDrives[i] );

    name.Append( ':' );

    name.Append( KDC_RESOURCE_FILES_DIR );

    name.Append( KResourceFileName );

    TBool found( EFalse );

    while ( !found && i < KResourceDrives.Length() )

        {

        name[0] = KResourceDrives[i++];

        if ( BaflUtils::FileExists(fs, name) )

            {

            // open resource

            resourceFile.OpenL( fs, name );

            CleanupClosePushL( resourceFile );

            found = ETrue;

            }

        }

    if ( !found )

        {

        User::Leave( KErrNotFound );

        }

    HBufC8* res = resourceFile.AllocReadLC( DEVASRINFO );

    TResourceReader theReader;

    theReader.SetBuffer( res );

    iSamplingRate = theReader.ReadInt16();

    iBitsPerSample = theReader.ReadInt16();

    iMicrophoneGain = theReader.ReadInt16();

    iSpeakerVolume = theReader.ReadInt16();

    iSilenceFrames = theReader.ReadInt16();

    iPadEndFrames = theReader.ReadInt16();

    iPadStartFrames = theReader.ReadInt16();

    iBufferSize = theReader.ReadInt16();

    iBuffersInWins = theReader.ReadInt16();

    iBuffersInThumb = theReader.ReadInt16();

    // Cleanup res, fs, resourceFile

    CleanupStack::PopAndDestroy( 3 );

    }

// End of File