1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __PALETTE_H__

    17 #define __PALETTE_H__

    18 

    19 #include <e32base.h>

    20 

    21 class TColor256Util;

    22 

    23 

    24 class DynamicPalette

    25 /** Hooks to allow dynamic palette switching in 256 colour mode.

    26 

    27 TRgb::Color256() transparently invokes hooks in this class. The behaviour 

    28 of the system can be customized by replacing the implementation in palette.dll 

    29 with device-specific functionality to switch the colour palette at run-time. 

    30 @publishedAll

    31 @released

    32 */

    33 	{

    34 public:

    35 	/** Stores the index values of the palettes defined. This enum may be as 

    36 	short or as long as desired - there is no requirement that the size of the 

    37 	enum in any given implementation be limited to the five sample values given 

    38 	in this example implementation. */

    39 	enum TIndex

    40 		{

    41 		/** A palette index number. */

    42 		EIndex0,

    43 		/** A palette index number. */

    44 		EIndex1,

    45 		/** A palette index number. */

    46 		EIndex2,

    47 		/** A palette index number. */

    48 		EIndex4,

    49 		/** A palette index number. */

    50 		EIndex5,

    51 	};

    52 

    53 	IMPORT_C static const TColor256Util* DefaultColor256Util();

    54 	IMPORT_C static void SetColor256Util(TIndex aIndex);

    55 

    56 	IMPORT_C static const TUint32* Color16array();

    57 	IMPORT_C static const TUint8* Color16inverse();

    58 	};

    59 

    60 #endif