uifw/AknGlobalUI/OldStyleNotif/Src/AknPrivateImageLoader.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:00:49 +0200
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permissions -rw-r--r--
Revision: 201003 Kit: 201005
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/*
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* Copyright (c) 2008 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:  Private image loader to convert binary array into usable image
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*
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*/
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// INCLUDES
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#include "AknPrivateImageLoader.h"
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#include <imageconversion.h>
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#include <eikenv.h>
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#include <f32file.h>
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#include <e32debug.h>
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#include <eikimage.h>
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#include <AknIconUtils.h>
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#include <SVGEngineInterfaceImpl.h>
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/// Max bitmap dimension (heigth or width) which is allowed to be loaded
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const TInt KMaxDecodeSize   = 300;
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/// Debug print macro
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#ifdef _DEBUG
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    #define RDEBUG( args... ) RDebug::Printf( args )
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#else
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    #define RDEBUG( args... )  
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#endif
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::CAknPrivateImageLoader
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// ---------------------------------------------------------------------------
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//
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CAknPrivateImageLoader::CAknPrivateImageLoader(
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    RFs& aFs,
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    MAknPrivateImageLoaderObserver& aObserver ) : 
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    CActive( EPriorityStandard ),
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    iObserver( aObserver ),
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    iFs( aFs )
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    {
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CAknPrivateImageLoader::ConstructL()
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    {
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::NewL
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// ---------------------------------------------------------------------------
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//
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CAknPrivateImageLoader* CAknPrivateImageLoader::NewL(
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    RFs& aFs,
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    MAknPrivateImageLoaderObserver& aObserver )
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    {
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    CAknPrivateImageLoader* self = 
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        CAknPrivateImageLoader::NewLC( aFs, aObserver );
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::NewLC
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// ---------------------------------------------------------------------------
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//
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CAknPrivateImageLoader* CAknPrivateImageLoader::NewLC(
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    RFs& aFs,
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    MAknPrivateImageLoaderObserver& aObserver )
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    {
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    CAknPrivateImageLoader* self = 
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        new( ELeave ) CAknPrivateImageLoader( aFs, aObserver );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::~CAknPrivateImageLoader
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// ---------------------------------------------------------------------------
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//
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CAknPrivateImageLoader::~CAknPrivateImageLoader()
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    {
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    Cancel();
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    delete iDecoder;
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    delete iIcon;
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::LoadIconL
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// ---------------------------------------------------------------------------
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//
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void CAknPrivateImageLoader::LoadIconL( 
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    const TDesC8& aImageData, 
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    TSize aSize )
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    {
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    Cancel();
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    // try to load bitmap
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    TRAPD( err, LoadL( aImageData, aSize ) );
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    if( err == KErrTooBig )
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   116
        {
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   117
        User::Leave( err );
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   118
        }
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parents:
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   119
    else if( err )
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parents:
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   120
        {
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   121
        // Decoder can't open it -> try to load as SVG image
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parents:
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   122
        LoadSVGImageL( aImageData, aSize );
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   123
        }
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   124
    }
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parents:
diff changeset
   125
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   126
// ---------------------------------------------------------------------------
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   127
// CAknPrivateImageLoader::RunL
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   128
// ---------------------------------------------------------------------------
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   129
//
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   130
void CAknPrivateImageLoader::RunL()
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   131
    {
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   132
    // Compress the heap after image conversion as image decoder
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   133
    // seems to leave heap uncompressed
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   134
    if( iDecoder )
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   135
        {
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   136
        delete iDecoder;
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   137
        iDecoder = NULL;
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   138
        User::Heap().Compress();
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   139
        }
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   140
    
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   141
    // check errors
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   142
    TInt status = iStatus.Int();
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   143
    if( status < KErrNone )
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   144
        {
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   145
        // Image load failed
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parents:
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   146
        RDEBUG( "CAknPrivateImageLoader::RunL: image load error %d", status );
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parents:
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   147
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   148
        delete iIcon;
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   149
        iIcon = NULL;
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   150
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   151
        iObserver.ImageLoadError( status );
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parents:
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   152
        // don't use member variables after callback, since this instance
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   153
        // might be deleted
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   154
        }
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   155
    else
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parents:
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   156
        {
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   157
        // Image load success
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   158
        ASSERT( iIcon );
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parents:
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   159
        
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parents:
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   160
        // generate dummy mask if image didn't have one.
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parents:
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   161
        CFbsBitmap* mask = iIcon->Mask();
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parents:
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   162
        if( !mask )
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parents:
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   163
            {
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parents:
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   164
            CFbsBitmap* genMask = 
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parents:
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   165
                GenerateMaskLC( iIcon->Bitmap()->SizeInPixels() );
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parents:
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   166
            iIcon->SetMask( genMask );
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parents:
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   167
            CleanupStack::Pop( genMask );
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parents:
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   168
            }
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parents:
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   169
        
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parents:
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   170
        // 1 bit masks needs to be inverted
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parents:
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   171
        else if( mask->DisplayMode() == EGray2 ) 
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parents:
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   172
            {
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   173
            InvertImageL( *mask );
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parents:
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   174
            }
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parents:
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   175
        
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parents:
diff changeset
   176
        // create scalable image
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parents:
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   177
        CAknIcon* icon = iIcon;
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parents:
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   178
        iIcon = NULL;
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parents:
diff changeset
   179
        iIcon = CreateIconL( icon ); // takes ownership (leave safe)
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parents:
diff changeset
   180
        
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parents:
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   181
        CEikImage* image = new(ELeave) CEikImage;
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parents:
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   182
        image->SetPicture( iIcon->Bitmap(), iIcon->Mask() );
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parents:
diff changeset
   183
        
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parents:
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   184
        // remove ownership from iIcon
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parents:
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   185
        iIcon->SetBitmap( NULL );
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parents:
diff changeset
   186
        iIcon->SetMask( NULL );
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parents:
diff changeset
   187
        
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   188
        delete iIcon;
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parents:
diff changeset
   189
        iIcon = NULL;
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   190
        
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parents:
diff changeset
   191
        iObserver.ImageLoadSuccess( image ); // ownership given
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parents:
diff changeset
   192
        // don't use member variables after callback, since this instance
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   193
        // might be deleted
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   194
        }
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   195
    }
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parents:
diff changeset
   196
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   197
// ---------------------------------------------------------------------------
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parents:
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   198
// CAknPrivateImageLoader::RunError
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   199
// ---------------------------------------------------------------------------
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   200
//
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parents:
diff changeset
   201
TInt CAknPrivateImageLoader::RunError( TInt aError )
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   202
    {
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   203
    RDEBUG( "CAknPrivateImageLoader::RunError: image load error %d", aError );
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parents:
diff changeset
   204
    
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parents:
diff changeset
   205
    delete iIcon;
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parents:
diff changeset
   206
    iIcon = NULL;
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parents:
diff changeset
   207
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parents:
diff changeset
   208
    iObserver.ImageLoadError( aError );
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   209
    // don't use member variables after callback, since this instance
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   210
    // might be deleted
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parents:
diff changeset
   211
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   212
    return KErrNone;
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parents:
diff changeset
   213
    }
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parents:
diff changeset
   214
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parents:
diff changeset
   215
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parents:
diff changeset
   216
// ---------------------------------------------------------------------------
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parents:
diff changeset
   217
// CAknPrivateImageLoader::DoCancel
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parents:
diff changeset
   218
// ---------------------------------------------------------------------------
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parents:
diff changeset
   219
//
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parents:
diff changeset
   220
void CAknPrivateImageLoader::DoCancel()
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   221
    {
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   222
    if( iDecoder )
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   223
        {
2f259fa3e83a Revision: 201003
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parents:
diff changeset
   224
        iDecoder->Cancel();
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parents:
diff changeset
   225
        delete iDecoder;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   226
        iDecoder = NULL;
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parents:
diff changeset
   227
        }
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parents:
diff changeset
   228
    }
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parents:
diff changeset
   229
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parents:
diff changeset
   230
// ---------------------------------------------------------------------------
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parents:
diff changeset
   231
// CAknPrivateImageLoader::InvertImageL
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parents:
diff changeset
   232
// ---------------------------------------------------------------------------
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//
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void CAknPrivateImageLoader::InvertImageL( CFbsBitmap& aBitmap )
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    {
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    TDisplayMode mode = aBitmap.DisplayMode();
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    TInt width = aBitmap.SizeInPixels().iWidth;
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    TInt height = aBitmap.SizeInPixels().iHeight;
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    HBufC8* buf = HBufC8::NewLC( aBitmap.ScanLineLength( width, mode ) );
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    TPtr8 bufPtr( buf->Des() );
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    for( TInt i = 0; i < height; ++i )
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        {
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        aBitmap.GetScanLine( bufPtr, TPoint( 0, i ), width, mode );
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        TInt len = bufPtr.Length();
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        for( TInt j = 0; j < len; ++j )
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            {
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            bufPtr[j] ^= 0xff;
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            }
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        aBitmap.SetScanLine( bufPtr, i );
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        }
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    CleanupStack::PopAndDestroy( buf );
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::CreateIconL
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// ---------------------------------------------------------------------------
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//
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CAknIcon* CAknPrivateImageLoader::CreateIconL( CAknIcon* aIcon )
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    {
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    CAknIcon* result = NULL;
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    if( aIcon->Mask() )
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        {
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        result = AknIconUtils::CreateIconL( aIcon ); // deletes icon in case of leave
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        }
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    else
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        {
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        // aMask is NULL
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        CFbsBitmap* image = aIcon->Bitmap();
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        aIcon->SetBitmap( NULL );
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        CleanupStack::PushL( aIcon );
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        image = AknIconUtils::CreateIconL( image ); // deletes image in case of leave
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        CleanupStack::Pop( aIcon );
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        aIcon->SetBitmap( image );
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        result = aIcon;
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        }
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    return result; // ownership given to caller
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    }
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// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::LoadL
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// ---------------------------------------------------------------------------
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//
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void CAknPrivateImageLoader::LoadL( const TDesC8& aImageData, TSize aSize )
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    {
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    delete iDecoder;
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    iDecoder = NULL;
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    // default loader
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    iDecoder = CImageDecoder::DataNewL( iFs, aImageData, 
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        CImageDecoder::EAllowGeneratedMask );
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    TFrameInfo info( iDecoder->FrameInfo() ); 
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    TSize& frameSize( info.iFrameSizeInPixels );
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    if( frameSize.iHeight > KMaxDecodeSize || 
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        frameSize.iWidth > KMaxDecodeSize )
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        {
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        RDEBUG("CAknPrivateImageLoader::LoadLC err: image larger than %dx%d",
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            KMaxDecodeSize, KMaxDecodeSize );
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        User::Leave( KErrTooBig );
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        }
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    CAknIcon* icon = CAknIcon::NewL();
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    CleanupStack::PushL( icon );
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    icon->SetBitmap( new( ELeave ) CFbsBitmap() );
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    TSize decodeSize( DecodeSize( info, aSize ) );
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    User::LeaveIfError( icon->Bitmap()->Create( 
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        decodeSize, info.iFrameDisplayMode ) );
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   314
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    if ( info.iFlags & TFrameInfo::ETransparencyPossible )
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        {
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        // Transparency available -> use mask
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        icon->SetMask( new( ELeave ) CFbsBitmap() );
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   319
        User::LeaveIfError( icon->Mask()->Create( decodeSize,
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            info.iFlags & TFrameInfo::EAlphaChannel ? EGray256 : EGray2 ) );
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   321
        }
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   322
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    // start processing
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    if( icon->Mask() )
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   325
        {
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   326
        iDecoder->Convert( &iStatus, *icon->Bitmap(), *icon->Mask() );
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   327
        }
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    else
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        {
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   330
        iDecoder->Convert( &iStatus, *icon->Bitmap() );
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   331
        }
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   332
    
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   333
    CleanupStack::Pop( icon );
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   334
    delete iIcon;
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   335
    iIcon = icon;
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diff changeset
   336
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   337
    // wait for completion
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   338
    SetActive();
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   339
    }
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   340
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   341
// ---------------------------------------------------------------------------
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// CAknPrivateImageLoader::LoadSVGImageL
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// ---------------------------------------------------------------------------
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//
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void CAknPrivateImageLoader::LoadSVGImageL(
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    const TDesC8& aImageData, 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
    TSize aSize )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
    CFbsBitmap* dummy = new(ELeave) CFbsBitmap();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
    CleanupStack::PushL( dummy );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
    TFontSpec spec;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
    CSvgEngineInterfaceImpl* svgEngine = 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
        CSvgEngineInterfaceImpl::NewL( dummy, NULL, spec );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
    CleanupStack::PushL( svgEngine );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
    TInt handle = KErrNotFound;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
    LeaveIfErrorL( svgEngine->PrepareDom( aImageData, handle ) );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
    CAknIcon* icon = CAknIcon::NewL();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
    CleanupStack::PushL( icon );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
    icon->SetBitmap( new(ELeave) CFbsBitmap() );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
    // create image bitmap
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
    TDisplayMode mode( EColor64K ); // default value
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
    CEikonEnv* eikon = CEikonEnv::Static();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
    if( eikon )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
        mode = eikon->ScreenDevice()->DisplayMode();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
    User::LeaveIfError( icon->Bitmap()->Create( aSize, mode ) ); 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
    // create soft mask
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
    icon->SetMask( new(ELeave) CFbsBitmap() );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
    User::LeaveIfError( icon->Mask()->Create( aSize, EGray256 ) );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
    // render svg image
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
    LeaveIfErrorL( 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
        svgEngine->RenderDom( handle, icon->Bitmap(), icon->Mask() ) );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
    CleanupStack::Pop( icon );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
    CleanupStack::PopAndDestroy( 2, dummy ); // svgEngine
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
    delete iIcon;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    iIcon = icon;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
    // handle image in RunL
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
    TRequestStatus* status = &iStatus;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
    User::RequestComplete( status, KErrNone );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
    SetActive();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
// CAknPrivateImageLoader::LeaveIfErrorL
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
void CAknPrivateImageLoader::LeaveIfErrorL( MSvgError* aError )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
    if( aError )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
        if( aError->HasError() && !aError->IsWarning() )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
            RDEBUG( "CAknPrivateImageLoader::LeaveIfErrorL: "
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
                "SVG loading error: %d", aError->ErrorCode() );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
            User::Leave( KErrCorrupt );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
// CAknPrivateImageLoader::GenerateMaskLC
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
CFbsBitmap* CAknPrivateImageLoader::GenerateMaskLC( TSize aSize )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
    CFbsBitmap* mask = new(ELeave) CFbsBitmap;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
    CleanupStack::PushL( mask );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
    User::LeaveIfError( mask->Create( aSize, EGray2 ) );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
    TInt width = aSize.iWidth;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
    TInt height = aSize.iHeight;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
    HBufC8* buf = HBufC8::NewLC( mask->ScanLineLength( width, EGray2 ) );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
    TPtr8 bufPtr( buf->Des() );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
    for( TInt i = 0; i < height; ++i )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
        mask->GetScanLine( bufPtr, TPoint( 0, i ), width, EGray2 );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
        bufPtr.FillZ();
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
        mask->SetScanLine( bufPtr, i );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
    CleanupStack::PopAndDestroy( buf );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
    User::LeaveIfError( mask->Compress() );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
    return mask;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
// CAknPrivateImageLoader::DecodeSize
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
// ---------------------------------------------------------------------------
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
//
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
TSize CAknPrivateImageLoader::DecodeSize( 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
    const TFrameInfo& aFrameInfo, 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
    const TSize& aTargetSize )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
    {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
    TSize imageSize( aFrameInfo.iOverallSizeInPixels );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
    if( aFrameInfo.iFlags & TFrameInfo::EFullyScaleable || 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
        aTargetSize == imageSize )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
        // decoder can scale to any ratio or the size is already correct
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
        return aTargetSize;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
    if( imageSize.iWidth < aTargetSize.iWidth ||
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
        imageSize.iHeight < aTargetSize.iHeight )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
        // image is smaller than targetsize
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
        return imageSize;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
    // Scale ratio limits
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
    const TInt KScaleRatioMin = 2;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
    const TInt KScaleRatioMax = 8;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
    // 1:1 is always valid ratio for decode scaling
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
    TInt lastValidRatio( 1 );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
    for( TInt ratio = KScaleRatioMin; ratio <= KScaleRatioMax; ratio <<= 1 )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
        {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
        if( imageSize.iWidth % ratio + imageSize.iHeight % ratio == 0 )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
            {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
            // this ratio is valid
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
            if( imageSize.iWidth / ratio < aTargetSize.iWidth || 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
                imageSize.iHeight / ratio < aTargetSize.iHeight )
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
                {
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
                // the decoded size was smaller in some dimension, 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
                // the last valid ratio should be used
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
                break;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
                }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
                
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
            // this scale ratio results to greater or equal size
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
            lastValidRatio = ratio;
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
            }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
        }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
    
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
    // return the size scaled with correct ratio
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
    return TSize( imageSize.iWidth / lastValidRatio, 
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
                  imageSize.iHeight / lastValidRatio );
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
    }
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
2f259fa3e83a Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
// End of file