uiacceltk/hitchcock/Client/src/alfimagebrush.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 15 Mar 2010 12:43:37 +0200
branchRCL_3
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permissions -rw-r--r--
Revision: 201010 Kit: 201010
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/*
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* Copyright (c) 2006 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:   Image brush
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*
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*/
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#include "alf/alfimagebrush.h"
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#include "alf/alfimage.h"
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#include "alf/alftexture.h"
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#include "alf/alfenv.h"
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#include "alf/alfgencomponent.h"
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#include "alflogger.h"
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#include "alfskinnableimage.h"
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#include "alf/alfconstants.h"
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#include <uiacceltk/HuiUtil.h>
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// Private data structure
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struct CAlfImageBrush::TImageBrushPrivateData
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    {
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    CAlfSkinnableImage* iImage;   // owned
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    TInt iLeftBorderWidth;
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    TInt iRightBorderWidth;
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    TInt iTopBorderWidth;
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    TInt iBottomBorderWidth;     
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    TAlfTimedPoint iOffset;
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    TAlfTimedValue iScale;
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    };
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//
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CAlfImageBrush::CAlfImageBrush()
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    : CAlfBrush()
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    {
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    }
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// ---------------------------------------------------------------------------
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// ConstructL
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// ---------------------------------------------------------------------------
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//
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void CAlfImageBrush::ConstructL(CAlfEnv& aEnv, const TAlfImage & aImage)
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    {
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    iImageBrushData = new (ELeave) TImageBrushPrivateData;
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    iImageBrushData->iImage = NULL;
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    iImageBrushData->iImage = new (ELeave) CAlfSkinnableImage(&aEnv);
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    iImageBrushData->iImage->SetImage(aImage); // This texturizes skin graphics if needed
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    iImageBrushData->iLeftBorderWidth = 0;
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    iImageBrushData->iRightBorderWidth = 0;
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    iImageBrushData->iTopBorderWidth = 0;
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    iImageBrushData->iBottomBorderWidth = 0;    
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    TAlfImageBrushParams params;
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    params.iTextureHandle = iImageBrushData->iImage->Image().Texture().ServerHandle(); 
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    params.iTl = aImage.TimedTopLeft();
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    params.iBr = aImage.TimedBottomRight();
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    params.iLeftBorderWidth = iImageBrushData->iLeftBorderWidth;
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    params.iRightBorderWidth = iImageBrushData->iRightBorderWidth;
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    params.iTopBorderWidth = iImageBrushData->iTopBorderWidth;
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    params.iBottomBorderWidth = iImageBrushData->iBottomBorderWidth;
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    TPckgC<TAlfImageBrushParams> paramsPckg(params);
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    CAlfBrush::ConstructL(
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        aEnv,
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        EAlfImageBrushCreate,
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        0,
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        paramsPckg
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        );
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    }
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// ---------------------------------------------------------------------------
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// Constructor
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CAlfImageBrush* CAlfImageBrush::NewL(CAlfEnv& aEnv, 
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    const TAlfImage & aImage)
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    {
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    CAlfImageBrush* self = CAlfImageBrush::NewLC( aEnv, aImage );
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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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// Constructor
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CAlfImageBrush* CAlfImageBrush::NewLC(CAlfEnv& aEnv, 
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    const TAlfImage & aImage)
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    {
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    CAlfImageBrush* self = new( ELeave ) CAlfImageBrush;
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    CleanupStack::PushL( self );
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    self->ConstructL(aEnv, aImage);
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// Destructor.
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// ---------------------------------------------------------------------------
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//
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CAlfImageBrush::~CAlfImageBrush()
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    {
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    if ( iImageBrushData )
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        {
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        delete iImageBrushData->iImage;
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        iImageBrushData->iImage = NULL;
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        }
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    delete iImageBrushData;
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    iImageBrushData = NULL;
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    }
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// ---------------------------------------------------------------------------
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// Set image
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CAlfImageBrush::SetImage(const TAlfImage& aImage)
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    {
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    iImageBrushData->iImage->SetImage(aImage); // This texturizes skin graphics if needed
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    TAlfImageBrushParams params;
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    params.iTextureHandle = aImage.Texture().ServerHandle(); 
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    params.iTl = aImage.TimedTopLeft();
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    params.iBr = aImage.TimedBottomRight();
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    params.iLeftBorderWidth = iImageBrushData->iLeftBorderWidth;
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    params.iRightBorderWidth = iImageBrushData->iRightBorderWidth;
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    params.iTopBorderWidth = iImageBrushData->iTopBorderWidth;
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    params.iBottomBorderWidth = iImageBrushData->iBottomBorderWidth;    
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    TPckgC<TAlfImageBrushParams> paramsPckg(params);        
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    TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetImage, paramsPckg);    
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    if ( err )
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::SetImage ignore error %d", err )
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        }
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    }
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// ---------------------------------------------------------------------------
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// Get image
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// ---------------------------------------------------------------------------
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//   
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EXPORT_C const TAlfImage& CAlfImageBrush::Image() const
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    {
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    return iImageBrushData->iImage->Image();
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    }
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// ---------------------------------------------------------------------------
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// 
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CAlfImageBrush::SetBorders(TInt aLeftBorderWidth,
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                             TInt aRightBorderWidth,
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                             TInt aTopBorderHeight,
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                             TInt aBottomBorderHeight)
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    {
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    iImageBrushData->iLeftBorderWidth = aLeftBorderWidth;
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    iImageBrushData->iRightBorderWidth = aRightBorderWidth;
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    iImageBrushData->iTopBorderWidth = aTopBorderHeight;
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    iImageBrushData->iBottomBorderWidth = aBottomBorderHeight;    
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    TAlfImageBrushParams params;
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    params.iLeftBorderWidth = iImageBrushData->iLeftBorderWidth;
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    params.iRightBorderWidth = iImageBrushData->iRightBorderWidth;
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    params.iTopBorderWidth = iImageBrushData->iTopBorderWidth;
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    params.iBottomBorderWidth = iImageBrushData->iBottomBorderWidth;    
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    TPckgC<TAlfImageBrushParams> paramsPckg(params);        
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    TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetBorders, paramsPckg);    
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    if ( err )
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::SetBorders ignore error %d", err )
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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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EXPORT_C TBool CAlfImageBrush::BorderDrawingEnabled() const
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    {
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	return ((iImageBrushData->iLeftBorderWidth!=0) || (iImageBrushData->iRightBorderWidth!=0)		
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		    || (iImageBrushData->iTopBorderWidth!=0) || (iImageBrushData->iBottomBorderWidth!=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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EXPORT_C TBool CAlfImageBrush::CenterDrawingEnabled() const
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    {
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	if(!iImageBrushData->iImage->Image().HasTexture()) 
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		{
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		return EFalse;
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		}				
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	// determine if there are center pixels available inside borders
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	// if not, we can't draw the center..
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	TSize imageSize = iImageBrushData->iImage->Image().Texture().Size();	
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	if((imageSize.iWidth - iImageBrushData->iLeftBorderWidth - iImageBrushData->iRightBorderWidth <= 0)
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	   || (imageSize.iHeight - iImageBrushData->iTopBorderWidth - iImageBrushData->iBottomBorderWidth <= 0))
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		{
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		return EFalse;
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		}	  
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	return ETrue;        
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    }
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// ---------------------------------------------------------------------------
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// Set scale mode for the image brush
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// ---------------------------------------------------------------------------
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//
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EXPORT_C void CAlfImageBrush::SetScaleMode(CAlfImageVisual::TScaleMode aScaleMode)
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    {
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    TPckgC<TInt> paramsPckg(aScaleMode);        
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    TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetScaleMode, paramsPckg );    
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    if ( err )
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::SetScaleMode panic error %d", err )
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        USER_INVARIANT();
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        }
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    }
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// ---------------------------------------------------------------------------
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// Sets offfset for the image
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// ---------------------------------------------------------------------------
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//    
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EXPORT_C void CAlfImageBrush::SetOffset(const TAlfTimedPoint& aOffset)
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    {
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    iImageBrushData->iOffset.iX = aOffset.iX;
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    iImageBrushData->iOffset.iY = aOffset.iY;
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    TPckgC<TAlfTimedPoint> offsetPckg(iImageBrushData->iOffset);
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    TInt err = Comms()->DoCmdNoReply(EAlfImageBrushSetOffset, offsetPckg);
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    if ( err )
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::SetOffset panic error %d", err )
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        USER_INVARIANT();
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        }
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    }
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// ---------------------------------------------------------------------------
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// Returns the offset
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// ---------------------------------------------------------------------------
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//    
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EXPORT_C const TAlfTimedPoint& CAlfImageBrush::Offset() const
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    {
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    TPckg<TAlfTimedPoint> offsetPckg(iImageBrushData->iOffset);
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    TInt err = Comms()->DoSynchronousCmd(EAlfImageBrushOffset, KNullDesC8, offsetPckg);
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    if ( err )
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::Offset ignore error %d", err )
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        }
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    return iImageBrushData->iOffset;
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    }
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// ---------------------------------------------------------------------------
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// Sets scale factor
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// ---------------------------------------------------------------------------
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//    
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EXPORT_C void CAlfImageBrush::SetScale(const TAlfTimedValue& aScale)
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    {
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    TPckgC<TAlfTimedValue> buf(aScale);
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    TInt err = Comms()->DoCmdNoReply( EAlfImageBrushSetScale, buf );
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    if ( err == KErrNone )
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        {
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        iImageBrushData->iScale = aScale;
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        }
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    else
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::SetScale panic error %d", err )
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        USER_INVARIANT();
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        }
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    }
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// ---------------------------------------------------------------------------
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// Returns scale factor
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// ---------------------------------------------------------------------------
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//    
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EXPORT_C const TAlfTimedValue& CAlfImageBrush::Scale() const
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    {
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    TPckg<TAlfTimedValue> buf(iImageBrushData->iScale);
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    TInt err = Comms()->DoSynchronousCmd( EAlfImageBrushScale, KNullDesC8, buf);
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    if ( err != KErrNone )
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        {
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        __ALFLOGSTRING1( "CAlfImageBrush::Scale panic error %d", err )
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        USER_INVARIANT();
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        }
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    return iImageBrushData->iScale;
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    }