/*

* Copyright (c) 2009 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: Juha Kauppinen, Mika Hokkanen

* 

* Description: Photo Browser

*

*/

#ifndef __IEIMAGELIST_H_

#define __IEIMAGELIST_H_

// INCLUDES

#include <e32base.h>

#include <f32file.h>

#include <bautils.h>

#include <s32file.h>

#include <ICLExif.h> 

#include <exifread.h>

#include <ExifUtility.h>

#include "IEImageProcessing.h"

#include "IEEngineUtils.h"

class CIEFileLoader;

enum TGridMode {

    EGridModeTime,

    EGridModeFolder,

    EGridModePeople

};

class CIEImageList

    {

public:

    IMPORT_C static CIEImageList* NewL(RArray<CImageData*>& aImageData, CIEFileLoader* aCallback);

    IMPORT_C ~CIEImageList();    

    IMPORT_C TBool IsImageViewableL(TDesC& aFileName, RFs& aFs) const;

    IMPORT_C void ReadDatabaseL();

    IMPORT_C void WriteDatabaseL();

    IMPORT_C CImageData* CreateImageDataL(

            const TFileName& aFileName, 

            const TTime& aCreatedTime, 

            TReal orientation);

    IMPORT_C void AddImage(CImageData* aImageData);

    IMPORT_C void Remove(TInt aIndex, RFs& aFs);

    IMPORT_C void RemoveNonExistImagesL(TDesC* aPath, RFs& aFs);     

    IMPORT_C TInt GetImageIndex(CImageData* aImageData);

    IMPORT_C CImageData* GetImageData(const TFileName& aFileName);

    IMPORT_C void SetChanged(TDesC& aPath);

    IMPORT_C void SetGridMode(TGridMode aGridMode);

    IMPORT_C TGridMode GetGridMode() const;    

private:        

    enum TImageListDrive {

        EImageListDriveC = 0,

        EImageListDriveE = 1,

        EImageListDriveF = 2,

    };

    CIEImageList(RArray<CImageData*>& aImageData, CIEFileLoader* aCallback);

    void ConstructL();

    CImageData* ReadImageDataL(RFileReadStream& readStream, RFs& aFs);

    void WriteDatabaseL(TImageListDrive aDrive, RFs& aFs);

    void GetDatabaseFileName(TFileName& aFileName, TImageListDrive aDrive);

    TBool IsImageBefore(CImageData* aImageData1, TInt aIndex) const;

    TInt GetNewImageIndex(CImageData* aImageData) const;

    void Rearrange(TInt aStartIndex);

    void SetChanged(CImageData* aImageData);

    static TImageListDrive GetPathDriveL(TDesC& aPath);

    CIEFileLoader*          iCallback; 

    TBool                   iDatabaseChanged[3];

    RArray<CImageData*>&    iImageDataList;    

    TGridMode               iGridMode;

    RCriticalSection        iCritical;

    };

#endif //__IEIMAGELIST_H_

// End of File