scrsaver/scrsaverplugins/BmpAnimScrPlugin/src/CBmpAnimIniData.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 17 Dec 2009 08:46:04 +0200
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/*
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* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:     Bitmap animator INI file handler
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*
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*/
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#include "CBmpAnimIniData.h"
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#include <f32file.h>
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#include <e32std.h>
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// Default directory to look for INI file
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_LIT(KIniFileDir,"C:\\private\\100056cf\\");
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const TInt KTokenSize=32;
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#ifdef _DEBUG
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// Debugging aids
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enum TIniPanic
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	{
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	ESectionNameTooBig,
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	EKeyNameTooBig,
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	};
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void Panic(TIniPanic aPanic)
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	{
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	_LIT(CBmpAnimIniData,"CBmpAnimIniData");
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	User::Panic(CBmpAnimIniData,aPanic);
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	}
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#endif  // _DEBUG
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// d'tor
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CBmpAnimIniData::~CBmpAnimIniData()
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	{
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	delete (TText*)iPtr.Ptr();
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	delete iToken;
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	delete iName;
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	}
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// Public allocation method
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CBmpAnimIniData* CBmpAnimIniData::NewL(const TDesC& aName)
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	{
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	CBmpAnimIniData* p=new(ELeave) CBmpAnimIniData;
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	CleanupStack::PushL(p);
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	p->ConstructL(aName);
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	CleanupStack::Pop();
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	return p;
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	}
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// Find a key's string) value regardless of section (wide)
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TBool CBmpAnimIniData::FindVar(const TDesC8& aKeyName, TDes16& aResult)
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    {
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    TPtrC8 tmpRes;
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    if (!FindVar(aKeyName, tmpRes))
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        {
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        return EFalse;
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        }
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    // Copy the 8-bit result into the 16-bit descriptor
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    aResult.Copy(tmpRes);
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    return ETrue;
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    }
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// Find a key's (string) value regardless of section
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TBool CBmpAnimIniData::FindVar(const TDesC8& aKeyName, TPtrC8& aResult)
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    {
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    _LIT8(KDummySection, "");
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    // Call with no section, so starts at beginning
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    if (FindVar(KDummySection, aKeyName, aResult))
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        {
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        return ETrue;
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        }
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    else
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        {
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        return EFalse;
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        }
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    }
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// Find a key's (string) value given a section name and a key name (wide)
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TBool CBmpAnimIniData::FindVar(const TDesC8& aSectName,
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                               const TDesC8& aKeyName,
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                               TDes16& aResult)
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    {
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    TPtrC8 tmpRes;
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    if (!FindVar(aSectName, aKeyName, tmpRes))
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        {
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        return EFalse;
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        }
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    // Copy the 8-bit result into the 16-bit descriptor
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    aResult.Copy(tmpRes);
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    return ETrue;
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    }
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// Find a key's (string) value given a section name and a key name
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TBool CBmpAnimIniData::FindVar(const TDesC8& aSectName,
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                               const TDesC8& aKeyName,
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   118
                               TPtrC8& aResult)
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parents:
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   119
    {
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   120
    __ASSERT_DEBUG(aSectName.Length() <= KTokenSize, Panic(ESectionNameTooBig));
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   121
    __ASSERT_DEBUG(aKeyName.Length() <= KTokenSize, Panic(EKeyNameTooBig));
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parents:
diff changeset
   122
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parents:
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   123
    TInt posStartOfSection(0);
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parents:
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   124
    TInt posEndOfSection(0);
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   125
    TPtrC8 SearchBuf;
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parents:
diff changeset
   126
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parents:
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   127
    // If we have a section, set pos to section start
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parents:
diff changeset
   128
    if (aSectName.Length() > 0)
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   129
        {
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   130
        if (!FindSection(aSectName, posStartOfSection, posEndOfSection))
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   131
            {
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            return EFalse;
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parents:
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   133
            }
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parents:
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   134
        }
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parents:
diff changeset
   135
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parents:
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   136
    // Look for key in ini file data Buffer
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   137
    TInt posI = posStartOfSection; // Position in internal data Buffer
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   138
    TBool FoundKey(EFalse);
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   139
    while (!FoundKey)
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   140
        {
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   141
        // Search for next occurrence of aKeyName
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        SearchBuf.Set(iPtr.Mid(posI));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   143
        TInt posSB = SearchBuf.Find(aKeyName);
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parents:
diff changeset
   144
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   145
        // If not found, return
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   146
        if (posSB == KErrNotFound)
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   147
            {
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   148
            return EFalse;
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   149
            }
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parents:
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   150
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parents:
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   151
        // Check this is at beginning of line (ie. non-commented)
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parents:
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   152
        // ie. Check preceding char was CR or LF
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parents:
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   153
        if(posSB > 0)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   154
            {
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parents:
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   155
            // Create a Buffer, starting one char before found subBuf
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   156
            TPtrC8 CharBefore(SearchBuf.Right(SearchBuf.Length() - posSB + 1));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   157
            // Check first char is end of prev
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parents:
diff changeset
   158
            if(CharBefore[0] == '\n')
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   159
                {
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parents:
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                FoundKey = ETrue;
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   161
                posI = posI + posSB;
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parents:
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   162
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   163
            else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   164
                {
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parents:
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   165
                posI = posI + posSB + 1;
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parents:
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   166
                }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   168
        else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   169
            {
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   170
            FoundKey = ETrue;
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parents:
diff changeset
   171
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   172
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   173
    }   // while (!FoundKey)
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parents:
diff changeset
   174
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parents:
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   175
    // Set pos to just after '=' sign
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   176
    SearchBuf.Set(iPtr.Mid(posI));
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   177
    TInt posSB = SearchBuf.Locate('=');
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   178
    if (posSB == KErrNotFound)     // Illegal format, should flag this...
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   179
        {
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   180
        return EFalse;
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parents:
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   181
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   183
    // Identify start and end of data (EOL or EOF)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   184
    posI = posI + posSB + 1;    // 1 char after '='
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   185
    TInt posValStart = posI;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
    TInt posValEnd;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
    SearchBuf.Set(iPtr.Mid(posI));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
    posSB = SearchBuf.Locate('\r');
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
    if (posSB != KErrNotFound)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
        {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
        posValEnd = posI + posSB;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
    else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
        posValEnd = iPtr.Length();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
        }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
    // Check we are still in the section requested
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
    if (aSectName.Length() > 0)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
        if (posValEnd > posEndOfSection)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
            {
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parents:
diff changeset
   203
            return EFalse;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
            }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
    // Parse Buffer from posn of key
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
    // Start one space after '='
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
    TLex8 lex(iPtr.Mid(posValStart, posValEnd - posValStart));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
    lex.SkipSpaceAndMark();     // Should be at the start of the data
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
    aResult.Set(lex.MarkedToken().Ptr(),
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
                posValEnd - posValStart - lex.Offset());
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
    return ETrue;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
    }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   217
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
// Find integer value regardless of section
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   219
TBool CBmpAnimIniData::FindVar(const TDesC8& aKeyName, TInt& aResult)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
    {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
    TPtrC8 ptr(NULL, 0);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   222
    if (FindVar(aKeyName, ptr))
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   224
        TLex8 lex(ptr);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   225
        if (lex.Val(aResult) == KErrNone)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
            {
040fcad49f44 Revision: 200949
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parents:
diff changeset
   227
            return ETrue;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   228
            }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   229
        }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   230
    return EFalse;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   231
    }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   232
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   233
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   234
// Find integer value within a given section
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   235
TBool CBmpAnimIniData::FindVar(
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    const TDesC8& aSection, const TDesC8& aKeyName, TInt& aResult)
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    {
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    TPtrC8 ptr(NULL, 0);
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    if (FindVar(aSection, aKeyName, ptr))
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        {
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        TLex8 lex(ptr);
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        if (lex.Val(aResult) == KErrNone)
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            {
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            return ETrue;
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            }
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        }
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    return EFalse;
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    }
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// Write integer value in given section
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TInt CBmpAnimIniData::WriteVarL(
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    const TDesC8& aSection, const TDesC8& aKeyName, TInt aValue)
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    {
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    TBuf8<32> buf;
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    buf.Num(aValue);
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    return WriteVarL(aSection, aKeyName, buf);
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    }
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// Write string value in given section
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TInt CBmpAnimIniData::WriteVarL(
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    const TDesC8& aSection, const TDesC8& aKeyName, const TDesC8& aValue)
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    {
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    // First find the variable - this gives us a descriptor into the
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    // ini data giving the bound of the item that has to be replaced
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    TPtrC8 ptr;
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    TInt pos;
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    TBool found = FindVar(aSection, aKeyName, ptr);
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    HBufC8* text = HBufC8::NewLC(
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        aSection.Length() + aKeyName.Length() + aValue.Length() + 7); // +7 for '=', '[', ']' and 2*cr+lf.
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    TPtr8 textp = text->Des();
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    if (found)
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        {
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        pos = ptr.Ptr() - iPtr.Ptr();
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        textp.Append(aValue);
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        }
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    else
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        {
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        TInt posStartOfSection = 0;
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        TInt posEndOfSection = 0;
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        if (FindSection(aSection, posStartOfSection, posEndOfSection))
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            {
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            pos = posEndOfSection;
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            }
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        else
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            {
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            pos = iPtr.Length();
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            textp.Append('[');
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            textp.Append(aSection);
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            textp.Append(']');
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            textp.Append('\r');
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            textp.Append('\n');
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            }
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        textp.Append(aKeyName);
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        textp.Append('=');
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        textp.Append(aValue);
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        textp.Append('\r');
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        textp.Append('\n');
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        }
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    TInt size = (iPtr.Length() + textp.Length() - ptr.Length()) * sizeof(TText8);
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    if (size > iPtr.MaxLength())
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        {
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        TText8* newdata = (TText8*) User::ReAllocL((TUint8*)iPtr.Ptr(), size);
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        iPtr.Set(newdata, iPtr.Length(), size/sizeof(TText8));
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        }
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    iPtr.Replace(pos, ptr.Length(), textp);
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    CleanupStack::PopAndDestroy(text);
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    return KErrNone;
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    }
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   319
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// Commits the changes in variables, ie writes the file data (held in iPtr)
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// into the actual disk file
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void CBmpAnimIniData::CommitL()
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    {
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    TAutoClose<RFs> fs;
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    User::LeaveIfError(fs.iObj.Connect());
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    fs.PushL();
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    // Just replace the file with the data, no seeking necessary
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    TAutoClose<RFile> file;
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    file.iObj.Replace(fs.iObj, *iName, EFileStreamText|EFileWrite);
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    file.PushL();
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   333
    
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    TPtrC8 ptrc8((TUint8*)iPtr.Ptr(), iPtr.Size());
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    User::LeaveIfError(file.iObj.Write(ptrc8));
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   336
    
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    file.Pop();
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    fs.Pop();
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   339
    }
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   340
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   341
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// --- protected --- 
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   343
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// c'tor
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CBmpAnimIniData::CBmpAnimIniData() 
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: iPtr(NULL, 0)
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   347
    {
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   348
    __DECLARE_NAME(_S("CBmpAnimIniData"));
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   349
    }
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parents:
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   350
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// Allocate a buffer and Read file's contents into iPtr
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
void CBmpAnimIniData::ConstructL(const TDesC& aName)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
    {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
    // Allocate space for token
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
    iToken = HBufC8::NewL(KTokenSize + 2);   // 2 extra chars for [tokenName]
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    // Connect to file server
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    TAutoClose<RFs> fs;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
    User::LeaveIfError(fs.iObj.Connect());
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
    fs.PushL();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
    // Find file, given name
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
    TFindFile ff(fs.iObj);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
    TAutoClose<RFile> file;    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
    TInt err = ff.FindByDir(aName, KIniFileDir);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
    // If found - cool, use the found file's name and open it
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
    if (err == KErrNone)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
        iName = ff.File().AllocL();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
        err = file.iObj.Open(fs.iObj, *iName, EFileStreamText | EFileRead);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
        }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
    // If not found - create the file using the given name
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
    if (err == KErrNotFound)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
        err = file.iObj.Create(fs.iObj, aName, EFileStreamText);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
        iName = aName.AllocL();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
        }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
    file.PushL();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    // Get file size and read in as 8-bit data
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
    TInt size = 0;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
    User::LeaveIfError(file.iObj.Size(size));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
    TText8* data = (TText8*) User::AllocL(size);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
    iPtr.Set(data, size, size);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
    TPtr8 dest((TUint8*)data, 0, size);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
    User::LeaveIfError(file.iObj.Read(dest));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
    file.Pop();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
    fs.Pop();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
    }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
// --- private --- 
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
// Find a section in the INIfile
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
TBool CBmpAnimIniData::FindSection(
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
    const TDesC8& aSection, TInt& aStart, TInt& aEnd)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
    {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
    TInt posI = 0;  // Position in internal databuffer
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
    TBool FoundSection = EFalse;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
    TPtrC8 SearchBuf;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
    while (!FoundSection)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
        // Move search buffer to next area of interest
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
        SearchBuf.Set(iPtr.Mid(posI));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
        
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
        // Make up token "[SECTIONNAME]", to search for
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
        TPtr8 sectionToken = iToken->Des();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
        _LIT8(sectionTokenFmtString,"[%S]");
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
        sectionToken.Format(sectionTokenFmtString, &aSection);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
        
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
        // Search for next occurrence of aSection
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
        TInt posSB = SearchBuf.Find(sectionToken);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
        
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
        // If not found, return
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
        if (posSB == KErrNotFound)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
            {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
            return EFalse;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
            }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
        
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
        // Check this is at beginning of line (ie. non-commented)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
        // ie. Check preceding char was LF
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
        if (posSB > 0)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
            {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
            // Create a Buffer, starting one char before found subBuf
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
            TPtrC8 CharBefore(SearchBuf.Right(SearchBuf.Length() - posSB + 1));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
            // Check first char is end of prev
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
            if (CharBefore[0] == '\n')
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
                {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
                FoundSection = ETrue;       // found
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
                posI = posI + posSB;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
                }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
            else
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
                {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
                posI = posI + posSB + 1;    // try again
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
                }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
            }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
        else
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
            {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
            FoundSection = ETrue;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
            }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
        
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
        }   // while (!FoundSection)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
    // Set start of section, after section name, (incl '[' and ']')
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
    aStart = posI + aSection.Length() + 2;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
    // Set end of section, by finding begin of next section or end
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
    SearchBuf.Set(iPtr.Mid(posI));
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
    _LIT8(nextSectionBuf,"\n[");
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
    TInt posSB = SearchBuf.Find(nextSectionBuf);
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
    if (posSB != KErrNotFound)
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
        aEnd = posI + posSB + 1;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
        }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
    else
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
        {
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
        aEnd = iPtr.Length();
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
        }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
    
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
    return ETrue;
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
    }
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
040fcad49f44 Revision: 200949
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
// EOF