1 /*

     2 * Copyright (c) 2003 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:  NvgIconHeader header file

    15  *

    16 */

    17 

    18 

    19 #ifndef _NVGICONHEADER_H_

    20 #define _NVGICONHEADER_H_

    21 

    22 #include <e32std.h>

    23 

    24 /**

    25 * TNVGHeaderData

    26 * 

    27 * Datastructure to hold NVG Icon Header information

    28 */

    29 struct TNVGHeaderData         // be aware of padding!

    30 {

    31     TUint16   sign;             

    32     TUint8    version;

    33     TUint8    headerSize;

    34     TUint32   reserved1;

    35     TUint16   reserved2;

    36     TUint8    reserved3;

    37     TUint8    reserved4:4;                // flag

    38     TUint8    isMarginCorrection:1;       // flag

    39     TUint8    isMask:1;                   // flag

    40     TUint8    aspectRatio:2;              // flag

    41     TInt32    rotation;

    42     TInt32    iconColor;

    43     TInt32    bitmapid;

    44 };

    45 

    46 

    47 

    48 // CONSTANTS

    49 static const TInt KIconHeaderLength = sizeof(TNVGHeaderData);

    50 

    51 // FIXME: find an appropriate place for me.

    52 

    53 /**

    54 * Class TNVGIconHeader

    55 * 

    56 * Class to hold NVG Icon Header information & operations

    57 */

    58 class TNVGIconHeader

    59     {

    60     

    61 public:

    62 	  /**

    63     * Constructor

    64     * 

    65     * @param aData      Descriptor to store the icon header data

    66     */

    67     inline TNVGIconHeader(TDes8 &aData)

    68         {

    69         __ASSERT_ALWAYS(aData.Length() >= KIconHeaderLength, User::Panic(_L("not sufficient size"), KErrBadDescriptor));

    70         iHeader = (TNVGHeaderData *)(aData.LeftTPtr(KIconHeaderLength).Ptr());

    71         }

    72 

    73     /**

    74     * Initializes icon header before writing any data

    75     * 

    76     * @param None

    77     */

    78     inline void Initialize()

    79         {

    80         Mem::FillZ(iHeader,KIconHeaderLength);

    81         iHeader->headerSize = KIconHeaderLength; 

    82         }

    83 

    84     

    85 		/**

    86     * Set the mask flag in icon header 

    87     * 

    88     * @param isMask          Flag to turn mask on/off

    89     */ 

    90     inline void SetIsMask(TBool isMask)

    91         {

    92         iHeader->isMask = isMask;

    93         }

    94 

    95     /**

    96     * Get the mask flag from icon header

    97     * 

    98     * @param None

    99     */

   100     inline TBool IsMask() const

   101         {

   102         return iHeader->isMask;

   103         }

   104  

   105 private:  

   106 

   107     TNVGHeaderData *iHeader;

   108     };

   109 

   110 #endif 

   111