1 /*

     2 * Copyright (c) 2005-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *       Phonebook2 contact item field embedded thumbnail reader.

    16 *       Reads an database-embedded picture from a field.

    17 *

    18 */

    19 

    20 

    21 #ifndef CPBK2EMBEDDEDIMAGE_H

    22 #define CPBK2EMBEDDEDIMAGE_H

    23 

    24 //  INCLUDES

    25 #include "CPbk2ImageReaderBase.h"

    26 #include "CPbk2ImageWriterBase.h"

    27 

    28 

    29 // FORWARD DECLARATIONS

    30 class MVPbkBaseContactField;

    31 class MVPbkStoreContactField;

    32 class TPbk2ImageManagerParams;

    33 class CVPbkContactManager;

    34 class MPbk2ImageData;

    35 

    36 // CLASS DECLARATION

    37 

    38 /**

    39  * Phonebook contact item field embedded thumbnail reader.

    40  * Reads a database-embedded picture from a field.

    41  */

    42 NONSHARABLE_CLASS(CPbk2EmbeddedImageReader) : 

    43         public CPbk2ImageReaderBase

    44     {

    45     public: // interface

    46         /**

    47          * Creates a new instance of this class.

    48          *

    49          * @param aField    field to read the thumbnail from.

    50          * @param aObserver observer to notify about progress of this 

    51          *                  operation.

    52          */

    53         static CPbk2EmbeddedImageReader* NewLC(

    54                 const MVPbkBaseContactField& aField,

    55                 MPbk2ImageGetObserver& aObserver );

    56    

    57         /**

    58          * Destructor. Cancels any previously executing read operation and

    59          * destroys this object.

    60          */

    61         ~CPbk2EmbeddedImageReader();

    62 

    63     public:  // from MPbk2ImageReader

    64         void StartReadL(const TPbk2ImageManagerParams* aParameters = NULL);

    65         HBufC8* CreateImageDataLC();

    66 

    67     private: // implementation

    68         CPbk2EmbeddedImageReader(

    69                 const MVPbkBaseContactField& aField,

    70                 MPbk2ImageGetObserver& aObserver );

    71         void ConstructL();

    72 		const TDesC8& ImageBuffer() const;

    73 		

    74     private: // data members

    75         /// Ref: Contact item field

    76         const MVPbkBaseContactField& iField; 

    77         /// Own: Image buffer

    78         HBufC8* iImageBuffer;

    79     };

    80 

    81 

    82 /**

    83  * Phonebook contact item field embedded thumbnail writer.

    84  * Writes a database-embedded picture to a field.

    85  */

    86 NONSHARABLE_CLASS(CPbk2EmbeddedImageWriter) : 

    87         public CPbk2ImageWriterBase 

    88     {

    89     public: // interface

    90         /**

    91          * Creates a new instance of this class.

    92          *

    93          * @param aContactManager Contact manager

    94          * @param aField    field to write the thumbnail to.

    95          * @param aObserver observer to notify about progress of this 

    96          *                  operation.

    97          */

    98         static CPbk2EmbeddedImageWriter* NewLC

    99             (CVPbkContactManager& aContactManager,

   100             MVPbkStoreContactField& aField, 

   101             MPbk2ImageSetObserver& aObserver);

   102    

   103         /**

   104          * Destructor.

   105          */

   106         ~CPbk2EmbeddedImageWriter();

   107 

   108     private: // from CPbkThumbnailWriterBase

   109         CImageEncoder* CreateImageWriterL();

   110         void StoreImageL(const MPbk2ImageData& aImageData);

   111         void StoreImageL(CImageEncoder& aImageWriter);

   112         void DoCancel();

   113         TSize ImageSize() const;

   114 

   115     private: // implementation

   116         CPbk2EmbeddedImageWriter

   117             (CVPbkContactManager& aContactManager,

   118             MVPbkStoreContactField& aField, 

   119             MPbk2ImageSetObserver& aObserver);

   120         void ConstructL();

   121 		TBool IsCodImageL() const;

   122 		TBool IsSameFieldType(const MVPbkFieldType& aFieldType) const;

   123     private: // data members

   124         /// Ref: Contact manager

   125         CVPbkContactManager& iContactManager;

   126         /// Ref: Contact item field

   127         MVPbkStoreContactField& iField; 

   128         /// Own: image buffer

   129         HBufC8* iBitmapBlob;

   130         

   131     };

   132 

   133 #endif // CPBK2EMBEDDEDIMAGE_H

   134 

   135 // End of File