camerauis/cameraapp/generic/src/cambitmapitem.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 15 Mar 2010 12:39:00 +0200
branchRCL_3
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parent 0 1ddebce53859
permissions -rw-r--r--
Revision: 201009 Kit: 201010
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/*
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* Copyright (c) 2008-2009 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:  Class for rendering bitmap based indicators
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*
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*/
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#include "cambitmapitem.h"
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#include "AknLayout2ScalableDef.h"
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#include "AknLayoutFont.h"
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#include "CamUtility.h"
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#include "CamPanic.h"  
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#include <AknIconUtils.h>
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#include <AknsUtils.h>
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#include <AknsConstants.h>
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#include <cameraapp.mbg> 
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_LIT( KCamBitmapFile, "z:\\resource\\apps\\cameraapp.mif" );
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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CCamBitmapItem::CCamBitmapItem()
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    {
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    // No implementation required
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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CCamBitmapItem::~CCamBitmapItem()
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    {
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    delete iBitmap;
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    delete iMask;
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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CCamBitmapItem* CCamBitmapItem::NewL(
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        TInt aBitmapId, 
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        TInt aMaskId )
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    {
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    CCamBitmapItem* self = new ( ELeave ) CCamBitmapItem();
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    CleanupStack::PushL( self );
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    self->ConstructL( aBitmapId, aMaskId );
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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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//
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// ---------------------------------------------------------------------------
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//
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CCamBitmapItem* CCamBitmapItem::NewL(
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        TInt aBitmapId,
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        TInt aMaskId,
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        const TAknsItemID& aID )
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    {
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    CCamBitmapItem* self = new ( ELeave ) CCamBitmapItem();
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    CleanupStack::PushL( self );
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    self->ConstructL( aBitmapId, aMaskId, aID );
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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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//
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// ---------------------------------------------------------------------------
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//
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void CCamBitmapItem::ConstructL( TInt aBitmapId, TInt aMaskId )
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    {
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    AknIconUtils::CreateIconL(
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        iBitmap,
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        iMask,
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        KCamBitmapFile,
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        aBitmapId,
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        aMaskId );
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    // If SizeInPixels() return zero size, this is a scalable icon
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    iScalableIcon = iBitmap->SizeInPixels() == TSize( 0, 0 );
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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void CCamBitmapItem::ConstructL(
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    TInt aBitmapId, TInt aMaskId, const TAknsItemID& aID )
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    {
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    MAknsSkinInstance* skinInstance = AknsUtils::SkinInstance();
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    AknsUtils::CreateIconL(
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        skinInstance, 
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        aID,
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        iBitmap,
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        iMask,
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        KCamBitmapFile,
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        aBitmapId,
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        aMaskId );
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    // If SizeInPixels() return zero size, this is a scalable icon
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    iScalableIcon = iBitmap->SizeInPixels() == TSize( 0, 0 );
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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void CCamBitmapItem::SetLayoutL(
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        const TRect& aParentRect,
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        const TAknWindowComponentLayout& aLayout )
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    {
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    TAknLayoutRect layout;
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    layout.LayoutRect( aParentRect, aLayout.LayoutLine() );
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    SetLayoutL( layout.Rect() );
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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void CCamBitmapItem::SetLayoutL(
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        const TRect& aRect )
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    {
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    if ( iRect != aRect )
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        {
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        iRect = aRect;
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		if ( iBitmap && iScalableIcon )
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            {
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            AknIconUtils::SetSize( iBitmap, iRect.Size() );
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            }
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        }
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    }
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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void CCamBitmapItem::Draw( CBitmapContext& aBitmapContext ) const
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    {
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    TRect cropRect(TPoint(0,0),iRect.Size());
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    DrawPartial( aBitmapContext, iRect, cropRect );
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	}
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// ---------------------------------------------------------------------------
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//
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// ---------------------------------------------------------------------------
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//
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void CCamBitmapItem::DrawPartial(
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    CBitmapContext& aBitmapContext,
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    const TRect& aDestRect,
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    const TRect& aCropRect ) const
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    {
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    if ( iBitmap && iMask )
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        {
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        // Alpha channel based rendering
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        aBitmapContext.SetDrawMode( CGraphicsContext::EDrawModeWriteAlpha );
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        aBitmapContext.BitBltMasked(
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            aDestRect.iTl + aCropRect.iTl,
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            iBitmap,
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            aCropRect,
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            iMask,
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            EFalse);
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        }
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    else
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        {
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        // Do nothing
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        }
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    }
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// ---------------------------------------------------------------------------
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// CCamBitmapItem::BitmapSize
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// ---------------------------------------------------------------------------
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//
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TSize CCamBitmapItem::BitmapSize() const
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    {
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    if ( iBitmap )
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        {
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        return iBitmap->SizeInPixels();
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        }
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    else
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        {
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        return iRect.Size();
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        }
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    }
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// ---------------------------------------------------------------------------
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// CCamBitmapItem::LayoutRect
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// ---------------------------------------------------------------------------
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//
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TRect CCamBitmapItem::LayoutRect() const
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    {
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    return iRect;
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    }
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// end of file