1 /*

     2 * Copyright (c) 2009 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:   ?Description

    15 *

    16 */

    17 

    18 

    19 #ifndef GLXIMAGEDECODER_H

    20 #define GLXIMAGEDECODER_H

    21 #include <QPixmap>

    22 #include <f32file.h> 

    23 #include "glximagedecoderwrapper.h"

    24 

    25 class GlxImageDecoderWrapper;

    26 class CImageDecoder;

    27 class CFbsBitmap;

    28 const TReal KTargetSize = 1000000;

    29 //if any image is converted to Pixmap with an dimension > 2048 

    30 //the conversion will fail

    31 const TInt KMaxDimensionLimit = 2000;

    32 class CGlxImageDecoder : public CActive

    33 {

    34 public:

    35 	static CGlxImageDecoder* NewL(GlxImageDecoderWrapper* decoderWrapper);

    36 	~CGlxImageDecoder();

    37     QSizeF DecodeImageL(QString aSourceFileName);

    38 	QPixmap GetPixmap();

    39 	void ResetDecoder();

    40 public:    

    41     /**

    42      * Standard Active object functions

    43      * */

    44     virtual void RunL();

    45     virtual void DoCancel();

    46 private:

    47     /*

    48      * Constructor

    49      * */

    50     CGlxImageDecoder();

    51 	/*

    52      *Second-phase constuction 

    53      * */

    54     void ConstructL(GlxImageDecoderWrapper* decoderWrapper);

    55 

    56     /*

    57      * Checks if the mimetype needs recalculations

    58      * @returnType false if jpeg

    59      * true otheriwise 

    60      */

    61     TBool DoesMimeTypeNeedsRecalculateL(QString aSourceFileName);

    62     

    63     /*

    64      * Does the recalculation and returns back the correct size

    65      * @returntype Size of the decoded bitmap

    66      */

    67     TSize ReCalculateSizeL(QString aSourceFileName, TSize aDestSize);

    68     

    69 private:

    70 	GlxImageDecoderWrapper* iDecoderWrapper;

    71 	/*Specifies the Decoder */

    72     CImageDecoder*          iImageDecoder; // decoder from ICL API

    73 	/*Contains the Bitmap generated*/

    74     CFbsBitmap* iBitmap;

    75 	/*Contains the bitmap in QT format8*/

    76 	QPixmap iDecodedPixmap;

    77 	/*A handle to a file server session.*/ 

    78     RFs iFs;

    79 

    80 };

    81 #endif //GLXIMAGEDECODER_H