1 /*

     2 * Copyright (c) 2002 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:  Camera Application Engine still image quality level and container

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef CAESTILLQUALITYLEVELS_H

    21 #define CAESTILLQUALITYLEVELS_H

    22 

    23 //  INCLUDES

    24 #include <ecam.h>

    25 #include <e32base.h>

    26 #include <e32std.h>

    27 #include "CaeSdKeys.h"

    28 #include "CaeQualityLevels.h"

    29 

    30 // CONSTANTS

    31 

    32 const TInt KCaeMaxStillQltyLevelCount = 6;

    33 

    34 const TInt KCaeImgWidthQQVGA    = 160; 

    35 const TInt KCaeImgHeightQQVGA   = 120; 

    36 

    37 const TInt KCaeImgWidthVGA      = 640; 

    38 const TInt KCaeImgHeightVGA     = 480; 

    39 

    40 

    41 // FORWARD DECLARATIONS

    42 class CStillQualityLevel;

    43 

    44 

    45 // CLASS DECLARATION

    46 

    47 /**

    48 * Camera Application Engine still image quality levels container.

    49 *

    50 */

    51 NONSHARABLE_CLASS( CCaeStillQualityLevelsCont ) : public CCaeQualityLevelsCont

    52     {

    53 

    54     public: // Constructors and destructor

    55 

    56         /**

    57         * Destructor.

    58         */

    59         virtual ~CCaeStillQualityLevelsCont();

    60 

    61         /**

    62         * Two-phased constructor.

    63         */

    64         static CCaeStillQualityLevelsCont* NewL();

    65 

    66         /**

    67         * Initializes quality levels to hardcoded default values.

    68         * @since 2.1

    69         * @return The count of quality levels initialized

    70         */

    71         TInt InitDefaultsL();

    72         

    73         /**

    74         * Gets the quality level count.

    75         * @since 2.1

    76         * @return Quality level count

    77         */

    78         TInt Count() const;

    79 

    80         /**

    81         * Gets the specified quality level.

    82         * @since 2.1

    83         * @param aIndex Quality level index

    84         * @return Still quality level

    85         */

    86         CStillQualityLevel& At( 

    87             TInt aIndex ) const;

    88 

    89         /**

    90         * Gets the Shared Data key of specified quality level.

    91         * @since 2.1

    92         * @param aIndex Quality level index

    93         * @return Shared Data key

    94         */

    95         const TDes& Key( 

    96             TInt aIndex ) const;

    97 

    98     private:

    99 

   100         /**

   101         * C++ constructor.

   102         */

   103         CCaeStillQualityLevelsCont();

   104 

   105         /**

   106         * Symbian OS 2nd phase constructor that can leave.

   107         */

   108         void ConstructL();

   109 

   110     private:

   111 

   112         /**

   113         * Resizes quality level array.

   114         * @since 2.1

   115         * @param aQualityLevelCount Quality level count for the new array

   116         * @return void

   117         */

   118         void ResizeL( 

   119             TInt aQualityLevelCount );

   120 

   121         /**

   122         * Gets the quality level count Shared Data key.

   123         * @since 2.1

   124         * @return Quality level count Shared Data key

   125         */

   126         const TDesC& QltyLevelCountSdKey() const;

   127 

   128     private: // For Shared Data support.

   129 

   130         /**

   131         * Creates quality level string for SharedData Camera ini file.

   132         * @since 2.1

   133         * @param aIndex Quality level index

   134         * @param aDefaultQualityLevel Output quality level string

   135         * @return void

   136         */

   137         void CreateQualityLevelString( 

   138             TInt  aIndex, 

   139             TDes& aDefaultQualityLevel );

   140 

   141         /**

   142         * Parses quality level string to quality level object data.

   143         * @since 2.1

   144         * @param aQualityLevelString Quality level string to parse

   145         * @param aIndex Quality level index

   146         * @return void

   147         */

   148         void ParseQualityLevelFromStringL( 

   149             const TDesC& qualityLevelString, 

   150             TInt         aIndex );

   151 

   152     private:

   153         

   154         // Supported still capture quality levels.

   155         CArrayFixFlat<CStillQualityLevel>* iQualityLevels;

   156     

   157         // Quality level count Shared Data key.

   158         const TDesC& iQltyLevelCountSdKey;    

   159     };

   160 

   161 

   162 

   163 // CLASS DECLARATION

   164 

   165 /**

   166 * Camera Application Engine still image quality level.

   167 *

   168 */

   169 NONSHARABLE_CLASS( CStillQualityLevel ) : public CQualityLevel

   170     {

   171     public:

   172         

   173         /**

   174         * Constructor.

   175         */

   176         CStillQualityLevel();

   177 

   178         /**

   179         * Destructor.

   180         */

   181         virtual ~CStillQualityLevel();

   182 

   183     public:

   184 

   185         // Still image frame size.

   186         TSize iFrameSize;

   187 

   188         // Still image output format.

   189         CCamera::TFormat iOutputFormat;

   190 

   191         // Still image compression quality.

   192         TInt iCompressionQuality;

   193 

   194         // Estimated size of an image in bytes.

   195         TInt iByteSize;

   196     };

   197 

   198 #endif // CAESTILLQUALITYLEVELS_H