williamr@2: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@2: // under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
williamr@2: // which accompanies this distribution, and is available
williamr@2: // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: //
williamr@2: 
williamr@2: #ifndef __PALETTE_H__
williamr@2: #define __PALETTE_H__
williamr@2: 
williamr@2: #include <e32base.h>
williamr@2: 
williamr@2: class TColor256Util;
williamr@2: 
williamr@2: 
williamr@2: class DynamicPalette
williamr@2: /** Hooks to allow dynamic palette switching in 256 colour mode.
williamr@2: 
williamr@2: TRgb::Color256() transparently invokes hooks in this class. The behaviour 
williamr@2: of the system can be customized by replacing the implementation in palette.dll 
williamr@2: with device-specific functionality to switch the colour palette at run-time. 
williamr@2: @publishedAll
williamr@2: @released
williamr@2: */
williamr@2: 	{
williamr@2: public:
williamr@2: 	/** Stores the index values of the palettes defined. This enum may be as 
williamr@2: 	short or as long as desired - there is no requirement that the size of the 
williamr@2: 	enum in any given implementation be limited to the five sample values given 
williamr@2: 	in this example implementation. */
williamr@2: 	enum TIndex
williamr@2: 		{
williamr@2: 		/** A palette index number. */
williamr@2: 		EIndex0,
williamr@2: 		/** A palette index number. */
williamr@2: 		EIndex1,
williamr@2: 		/** A palette index number. */
williamr@2: 		EIndex2,
williamr@2: 		/** A palette index number. */
williamr@2: 		EIndex4,
williamr@2: 		/** A palette index number. */
williamr@2: 		EIndex5,
williamr@2: 	};
williamr@2: 
williamr@2: 	IMPORT_C static const TColor256Util* DefaultColor256Util();
williamr@2: 	IMPORT_C static void SetColor256Util(TIndex aIndex);
williamr@2: 
williamr@2: 	IMPORT_C static const TUint32* Color16array();
williamr@2: 	IMPORT_C static const TUint8* Color16inverse();
williamr@2: 	};
williamr@2: 
williamr@2: #endif