skins/AknSkins/src/AknsRendererWrapper.cpp
author Dario Sestito <darios@symbian.org>
Fri, 19 Nov 2010 15:21:06 +0000
branchRCL_3
changeset 129 67a72ace5294
parent 0 05e9090e2422
permissions -rw-r--r--
Fix for Bug 3172 - Recorder application demands Memory card
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/*
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* Copyright (c) 2004-2008 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:  Wrapper class for access to scalable item renderer.
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*
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*/
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// INCLUDE FILES
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#include "AknsCppPreface.h"
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#include <AknsRendererWrapper.h>
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#include "AknsScalabilityUtils.h"
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#include "AknsRlRenderer.h"
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#include "AknsDebug.h"
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// AknsRendererWrapper::RenderScalableItemL
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// (commented in the header).
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// -----------------------------------------------------------------------------
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//
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EXPORT_C void AknsRendererWrapper::RenderScalableItemL(
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    MAknsSkinInstance* aSkin, const TAknsItemID& aIID, CFbsBitmap*& aOutRGB,
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    CFbsBitmap*& aOutAlpha, const TRect& aRect,
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    const CFbsBitmap* aInRGB, const CFbsBitmap* aInAlpha )
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    {
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    if( !aSkin ) User::Leave( KErrArgument );
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    CAknsAppSkinInstance* appSkin = static_cast<CAknsAppSkinInstance*>(aSkin);
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    TAknsItemID realIID =
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        AknsScalabilityUtils::ConcreteEffectQueue( appSkin, aIID );
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    if( realIID == KAknsIIDNone )
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        {
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        // No such item
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        User::Leave( KErrNotFound );
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        }
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    CAknsEffectQueueItemData* queue = static_cast<CAknsEffectQueueItemData*>(
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        appSkin->GetCachedItemData( realIID, EAknsITEffectQueue ) );
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    if( !queue )
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        {
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        // No such item
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        User::Leave( KErrNotFound );
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        }
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    MAknsRlRenderer* renderer = appSkin->DefaultRenderer();
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    MAknsRlCommandIterator* commands =
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        queue->CreateCommandIteratorL();
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    CleanupStack::PushL( TCleanupItem(
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        MAknsRlCommandIterator::CleanupOperation, commands ) ); // (1)
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    TInt inputLayer = queue->InputLayer();
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    TInt outputLayer = queue->OutputLayer();
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    // Bitmap and mask being created, no leaves allowed
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    TInt rendererErr = KErrNone;
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    CFbsBitmap* bitmap = NULL;
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    CFbsBitmap* alpha = NULL;
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    if( aInRGB || aInAlpha )
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        {
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        rendererErr = renderer->RenderItemWithBackground(
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            bitmap, alpha, outputLayer, commands, aRect.Size(),
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            aInRGB, aInAlpha, aRect, inputLayer );
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        }
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    else
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        {
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        rendererErr = renderer->RenderItem(
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            bitmap, alpha, outputLayer, commands, aRect.Size() );
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        }
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    if( rendererErr )
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        {
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        // Leave is safe (bitmaps not created)
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        User::Leave( rendererErr );
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        }
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    CleanupStack::PopAndDestroy(); // commands (0)
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    // Drop alpha, if RGB only
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    if( queue->OutputLayerMode() == KAknsRlLayerRGBOnly )
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        {
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        delete alpha;
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        alpha = NULL;
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        }
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    // Ownership transfer
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    aOutRGB = bitmap;
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    aOutAlpha = alpha;
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    }
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//  End of File
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