/*

* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#ifndef AKNLAYOUT2SCALABLEDATADEF_H

#define AKNLAYOUT2SCALABLEDATADEF_H

#include <AknLayout2ScalableDef.h>

// constants used as special values in layout data

// for internal use only.

const TInt16 p = 0x4000;

/**

* A version of TAknLayoutScalableParameterLimits that can be initialised as a const static.

* For internal use only.

* This must be maintained in parallel with TAknWindowComponentLayout.

*/

class TAknLayoutScalableParameterLimitsImp

	{

public:

	inline operator TAknLayoutScalableParameterLimits() { return *reinterpret_cast<TAknLayoutScalableParameterLimits*>(this); }

public:

	TInt iFirstVariety;

	TInt iLastVariety;

	TInt iFirstColumn;

	TInt iLastColumn;

	TInt iFirstRow;

	TInt iLastRow;

	};

/**

* A version of TAknWindowComponentLayout that can be initialised as a const static.

* For internal use only.

* This must be maintained in parallel with TAknWindowComponentLayout.

*/

class TAknWindowComponentLayoutImp

	{

public:

	inline operator TAknWindowComponentLayout() { return *reinterpret_cast<TAknWindowComponentLayout*>(this); }

public:

    // structural information

    TInt16 iFirstChildID;

    TInt16 iNextSiblingID;

    TInt16 iParentID;

    TInt16 iParentVariety;

    TInt16 iType;

    TInt16 iAttributeSetID;

    // the following entries are the layout data

    TInt16 iC;

    TInt16 il;

    TInt16 it;

    TInt16 ir;

    TInt16 ib;

    TInt16 iW;

    TInt16 iH;

    // the following entries are to force this structure to be castable to TAknTextComponentLayout

    TInt16 iReserved1;

    TInt16 iReserved2;

    TInt16 iReserved3;

	};

/**

* A version of TAknTextComponentLayout that can be initialised as a const static.

* For internal use only.

* This must be maintained in parallel with TAknTextComponentLayout.

*/

class TAknTextComponentLayoutImp

	{

public:

	inline operator TAknTextComponentLayout() { return *reinterpret_cast<TAknTextComponentLayout*>(this); }

public:

    // structural information

    TInt16 iFirstChildID;

    TInt16 iNextSiblingID;

    TInt16 iParentID;

    TInt16 iParentVariety;

    TInt16 iType;

    TInt16 iAttributeSetID;

    // the following entries are the layout data

    TInt16 iC;

    TInt16 il;

    TInt16 it;

    TInt16 ir;

    TInt16 ib; // note that this is bottom, not baseline

    TInt16 iW;

    TInt16 iH;

    // the following entries are specific to text components

    TInt16 iJ;

    mutable TInt32 iFont;

	};

#ifdef RD_SECURE_BIN_RES

_LIT(KAknLayoutDllName, "101fe2aa.DLL");

#else

_LIT(KAknLayoutDllName, "LayoutInst.DLL");

#endif

/**

* represents data structures used in the optimised representation of layout data.

* for internal use only

*/

struct SCompDataImplData

	{

	TUint16 const * iDataLookup;

	TUint8 const * iByteCodedData;

	};

/**

* Decode functions for optimised layout data.

* For internal use only.

* Note: TUint8 and TUin16 are used extensively in the layout data to minimise ROM use in the

* layout data.

*/

class AknLayoutScalableDecodeSupport

	{

public:

	IMPORT_C static void WindowLine(TAknWindowComponentLayoutImp& aLine, const SCompDataImplData* aImplData);

	IMPORT_C static void WindowLine(TAknWindowComponentLayoutImp& aLine, const SCompDataImplData* aImplData, TInt aVariety, TInt aColumn, TInt aRow);

	IMPORT_C static void TextLine(TAknTextComponentLayoutImp& aLine, const SCompDataImplData* aImplData);

	IMPORT_C static void TextLine(TAknTextComponentLayoutImp& aLine, const SCompDataImplData* aImplData, TInt aVariety, TInt aColumn, TInt aRow);

	IMPORT_C static void WindowTable(TAknWindowComponentLayoutImp& aLine, const SCompDataImplData* aImplData, TInt aLineIndex);

	IMPORT_C static void WindowTable(TAknWindowComponentLayoutImp& aLine, const SCompDataImplData* aImplData, TInt aLineIndex, TInt aVariety, TInt aColumn, TInt aRow);

	IMPORT_C static void TextTable(TAknTextComponentLayoutImp& aLine, const SCompDataImplData* aImplData, TInt aLineIndex);

	IMPORT_C static void TextTable(TAknTextComponentLayoutImp& aLine, const SCompDataImplData* aImplData, TInt aLineIndex, TInt aVariety, TInt aColumn, TInt aRow);

	IMPORT_C static TAknLayoutScalableTableLimits TableLimits(const TUint16* aDataLookup);

	IMPORT_C static void ParameterLimits(TAknLayoutScalableParameterLimitsImp& aLimits, const SCompDataImplData* aImplData, TInt aVariety);

	IMPORT_C static void ParameterLimitsTable(TAknLayoutScalableParameterLimitsImp& aLimits, const SCompDataImplData* aImplData, TInt aLineIndex, TInt aVariety);

	IMPORT_C static void GetComponentTypeById(TAknLayoutScalableComponentType& aLimits, const SCompDataImplData* aImplData, TInt aComponentId);

	IMPORT_C static void GetParamLimitsById(TAknLayoutScalableParameterLimitsImp& aLimits, const SCompDataImplData* aImplData, TInt aComponentId, TInt aVariety);	

	IMPORT_C static void GetWindowComponentById(TAknWindowComponentLayoutImp & aLine, const SCompDataImplData* aImplData, TInt aComponentId, TInt aVariety, TInt aCol, TInt aRow);

	IMPORT_C static void GetTextComponentById(TAknTextComponentLayoutImp & aLine, const SCompDataImplData* aImplData, TInt aComponentId, TInt aVariety, TInt aCol, TInt aRow);

private:

	static void DecodeTypeId(TInt16& aType, TBool& aHasHeaderBlock, const TUint8*& aData);

	static void DecodeSimple(TUint16* aLine, const TUint8* aData, TInt aNumCells);

	static void DecodeSimpleCells(TUint16* aLine, const TUint8* aData, TUint16 aType, TInt aNumCells);

	static void DecodeHeaderBlock(TInt*& aLimits, TInt& aNumVarieties, TInt& aNumMultiValues, const TUint8*& aParamsPtr, const TUint8*& aData, TInt aVariety);

	static void DecodeParamLimitParam(TInt*& aLimits, TInt& aNumMultiValues, const TUint8*& aParamsPtr, const TUint8*& aData, TInt aVariety, TInt aCellIndex, TInt& aVarietyOffset);

	static void DecodeParams(TUint16* aLine, const TUint8* aData, TInt aNumCells, TInt aVariety, TInt aColumn, TInt aRow);

	static void DecodeParamCells(TUint16* aLine, const TUint8* aData, TUint16 aType, TInt aNumCells, TInt aVariety, TInt aColumn, TInt aRow);

	static void DecodeParam(TInt aCell, TBool& aOptimizedVarieties, TInt& aMax, TInt& aParam, const TUint8* aParamsPtr, TInt aNumParams, TInt aMulti, TInt aVariety, TInt aVarietyOffset);

	static void DecodeCell(TInt& aMax, TInt& aParam, const TUint8*& aDataPtr, TUint16*& aDecodedPtr);

	static void DecodeParamLimitsCell(TInt aVariety, TInt aMax, TInt& aParam, const TUint8*& aDataPtr, TUint32*& aDecodedPtr, TInt& aVarietyOffset);

	static void DecodeParamLimits(TInt* aLimits, const TUint8* aData, TInt aVariety);

	static void SkipBytes(const TUint8*& aPtr, TInt aNum);

	static TInt32 SumBytes(const TUint8*& aPtr, TInt aNum);

	static TInt32 DecodeBytes(const TUint8*& aPtr);

	static void DecodeBytes(const TUint8*& aPtr, TUint16*& aDecodedPtr);

	static const TUint8* DecodeTable(const SCompDataImplData* aImplData, TInt aLineIndex);

	static const TUint8* DataPtr(const SCompDataImplData* aImplData);

	static const TUint8* DataPtr(const SCompDataImplData* aImplData, TInt aComponentId);

	static void MirrorValues(TAknWindowComponentLayoutImp& aLine);

	static void MirrorValues(TAknTextComponentLayoutImp& aLine);

	};

#endif

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