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os/textandloc/textrendering/texthandling/inc/TXTFMSTM.H
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 /*

     2 * Copyright (c) 1997-2009 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: 

    15 * PRIVATE HEADER FILE CONTAINING IMPLEMENTATION SPECIFIC CLASSES

    16 *

    17 */

    18 

    19 

    20 #ifndef __TXTFMSTM_H__

    21 #define __TXTFMSTM_H__

    22 

    23 #include <e32std.h>

    24 #include <txtfrmat.h>

    25 

    26 // forward declarations

    27 class RReadStream;

    28 class RWriteStream;

    29 class TCharFormatX;

    30 class TCharFormatXMask;

    31 

    32 /**

    33 stores format attributes as bytecode, this class is intended for internal use only. 

    34 @publishedAll

    35 */

    36 class RFormatStream

    37 	{

    38 public:

    39 	RFormatStream();

    40 	void CopyL(const RFormatStream& aSource);

    41 	void ExternalizeL(RWriteStream& aStream) const;

    42 	void InternalizeL(RReadStream& aStream);

    43 	void Reset();

    44 	const TUint8* Ptr(TInt& aSize) const;

    45 	void SetParaFormatL(const CParaFormat& aDesiredFormat,const TParaFormatMask& aDesiredMask,const CParaFormat& aCurrentFormat);

    46 	void SenseParaFormatL(CParaFormat& aParaFormat,TParaFormatMask& aMask,CParaFormat::TParaFormatGetMode aMode)const;

    47 	void SetCharFormatL(const TCharFormatX& aCharFormat,const TCharFormatXMask& aMask);

    48 	void SenseCharFormat(TCharFormatX& aCharFormat,TCharFormatXMask& aMask)const;

    49 	void Swap(RFormatStream& aStream);

    50 

    51 private:

    52 	void AllocL(TInt aSize);

    53 	TInt Length(TUint8*& aPtr,TTextFormatAttribute aType)const;

    54 	TInt DoCalcSizeParaFormat(const CParaFormat& aDesiredFormat,TParaFormatMask aMask,const CParaFormat& aCurrentFormat);

    55 	void DoSetParaFormat(const CParaFormat& aDesiredFormat,TParaFormatMask aMask,const CParaFormat& aCurrentFormat);

    56 	void RemoveRedundantCharFormat(TCharFormatMask& aMask,const TCharFormatX& aFormat,const TCharFormatX& aEffectiveFormat);

    57 	TInt DoCalcSizeCharFormat(const TCharFormatX& aCharFormat,const TCharFormatXMask& aMask);

    58 	void DoStoreCharFormat(const TCharFormatX& aCharFormat,TCharFormatXMask aMask);

    59 	TUint8* StoreBullet(TUint8* aPtr,const TBullet& aSource);

    60 	TUint8* StoreBorder(TUint8* aPtr,TTextFormatAttribute aType,const TParaBorder& aSource);

    61 	TUint8* StoreTab(TUint8* aPtr,const TTabStop& aSource);

    62 	TInt StoreTabs(TUint8*& aPtr,const CParaFormat& aDesiredFormat,const CParaFormat& aCurrentFormat,TBool aStoreData);

    63 	TInt MergeTabLists(TUint8*& aPtr,const CParaFormat& aDesiredFormat,TInt aDesiredTabCount,

    64 					   const CParaFormat& aCurrentFormat,TInt aCurrentTabCount,TBool aStoreData);

    65 	void StoreAllTabs(TUint8*& aPtr,const CParaFormat& aSource);

    66 	TUint8* Store(TUint8* aPtr,const TLogicalRgb& aRgb);

    67 	TUint8* Store(TUint8* aPtr,const TTypeface& aTypeface);

    68 	TUint8* ReadValue(TUint8* aPtr,TLogicalRgb& aRgb)const;

    69 	TUint8* ReadValue(TUint8* aPtr,TTypeface& aTypeface)const;

    70 	TUint8* ReadValue(TUint8* aPtr,TParaBorder& aBorder)const;

    71 	TUint8* ReadValue(TUint8* aPtr,TBullet& aBullet)const;

    72 	TUint8* ReadTabL(TUint8* aPtr,CParaFormat& aTarget)const;

    73 

    74 	TUint8* iBase;	// start of stored bytecode

    75 	TUint8* iEnd;	// end of stored bytecode

    76 

    77 	__DECLARE_TEST;

    78 private:

    79 	void TestInvariantL() const;

    80 	TBool DoInvariantCheck() const;

    81 	};

    82 

    83 #endif
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