/*

* Copyright (c) 2004-2008 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: 

*

*/

using System;

using System.IO;

using System.Collections.Generic;

using System.Text;

using System.Threading;

using SymbianStructuresLib.CodeSegments;

using SymbianStructuresLib.Debug.Code;

using SymbianStructuresLib.Debug.Code.Interfaces;

using SymbianCodeLib.SourceManagement.Source;

using SymbianCodeLib.SourceManagement.Provisioning;

using SymbianUtils;

using SymbianUtils.Tracer;

using SymbianUtils.FileTypes;

using SymbianImageLib.Common.Image;

using SymbianImageLib.Common.Content;

using CLPluginImg.Source;

using CLPluginImg.Provider;

namespace CLPluginImg.Reader

{

    internal class ImgReader : DisposableObject

	{

        #region Constructors

        public ImgReader( ImgSource aSource, ITracer aTracer )

		{

            iSource = aSource;

            iImageContent = aSource.ImageContent;

            iImageContent.DecompressionEvent += new SIContent.DecompressionEventHandler( ImageContent_PreparationEvent );

		}

		#endregion

        #region API

        public void Read( TSynchronicity aSynchronicity )

        {

            iImageContent.PrepareContent( aSynchronicity );

        }

        #endregion

        #region Properties

        protected CodeCollection Collection

        {

            get

            {

                SymbianUtils.SymDebug.SymDebugger.Assert( iSource.Count == 1 );

                return iSource[ 0 ];

            }

        }

		#endregion

        #region Event handlers

        private void ImageContent_PreparationEvent( SIContent.TDecompressionEvent aEvent, SIContent aFile, object aData )

        {

            switch ( aEvent )

            {

            case SIContent.TDecompressionEvent.EEventDecompressionStarting:

                iSource.ReportEvent( CodeSource.TEvent.EReadingStarted );

                break;

            case SIContent.TDecompressionEvent.EEventDecompressionProgress:

                iSource.ReportEvent( CodeSource.TEvent.EReadingProgress,( aData != null && aData is Int32 ) ? (int) aData : 0 );

                break;

            case SIContent.TDecompressionEvent.EEventDecompressionComplete:

                OnComplete();

                break;

            }

        }

        #endregion

        #region Internal methods

        private void OnComplete()

        {

            iSource.ReportEvent( CodeSource.TEvent.EReadingComplete );

            this.Dispose();

        }

        #endregion

        #region From DisposableObject

        protected override void CleanupManagedResources()

        {

            try

            {

                base.CleanupManagedResources();

            }

            finally

            {

                iImageContent.DecompressionEvent -= new SIContent.DecompressionEventHandler( ImageContent_PreparationEvent );

            }

        }

        #endregion

        #region Data members

        private readonly CodeSource iSource;

        private readonly SIContent iImageContent;

		#endregion

	}

}