webengine/pagescaler/inc/pagescaler.h
author BuildAdmin@LON-ENGBUILD89
Tue, 28 Apr 2009 13:30:24 +0100
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/*
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* Copyright (c) 2004 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 the License "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: 
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*
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*/
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#ifndef PAGESCALER_H
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#define PAGESCALER_H
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//  INCLUDES
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#include <e32base.h>
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#include <gdi.h>
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// CONSTANTS
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// MACROS
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// DATA TYPES
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// FUNCTION PROTOTYPES
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// FORWARD DECLARATIONS
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class CWindowGc;
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class CFbsBitGc;
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class CFbsBitmap;
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class CCoeControl;
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// CLASS DECLARATION
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/**
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*
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*
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*  @lib webkit.dll
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*  @since 3.1
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*/
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class MPageScalerCallback
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    {
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    public:
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void DrawDocumentPart(CFbsBitGc& aGc, CFbsBitmap* aBitmap, const TRect& aDocumentAreaToDraw) = 0;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TRect DocumentViewport()  = 0;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void ScaledPageChanged(const TRect& aArea, TBool aFullScreen, TBool aScroll) = 0;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TSize DocumentSize() = 0;
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        /**
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        *
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        * @since 3.2
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        * @param
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        * @return
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        */
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        virtual TBool TouchScrolling() = 0;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual CCoeControl& PageControlView() = 0;
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    };
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// CLASS DECLARATION
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/**
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*
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*
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*  @lib webkit.dll
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*  @since 3.1
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*/
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class CPageScaler : public CBase
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    {
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    public:
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        enum TPosition
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            {
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            ETopLeft,
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            ETopRight,
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            EBottomLeft,
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            EBottomRight
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            };
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    public:  // Constructors and destructor
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        /**
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        * Two-phased constructor.
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        */
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        IMPORT_C static CPageScaler* NewL(MPageScalerCallback& aCallback, TDisplayMode aMode, TBool aLowQuality);
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        /**
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        * Destructor.
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        */
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        virtual ~CPageScaler();
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    public:
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void SetVisibleUntil(TTimeIntervalMicroSeconds32 aUntil);
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void SetVisible(TBool aVisible);
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TBool Visible() const;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void SetZoomOutLevel(TInt aPercent);
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TInt ZoomOutLevel() const;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void SetMaxSize(TSize aSize);
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TSize MaxSize() const;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void SetTransparency(TInt aPercent);
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TInt Transparency() const;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TRect Rect() const;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void SetRelativePosition(TInt aXDist, TInt aYDist, TPosition aPosition);
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual TRect IndicatorRect() const;
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void DocumentStarted();
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void DocumentChangedL();
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void DocumentCompleted();
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        /**
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        *
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void DocumentViewportMoved();
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        /**
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        * @since 3.1
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        * @param
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        * @return
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        */
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        virtual void Draw(CWindowGc& aGc, const TRect& aRect) const;
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        /**
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        * @since 3.1
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        * @param
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        * @return the scaled copy of the page
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        */
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        virtual CFbsBitmap* ScaledPage() const;
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        /**
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        * @since 3.1
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        * @return
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        */
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        virtual TRect ContainerRect() const;
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        /**
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        * @since 3.1
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        * @return
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        */
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        virtual void SetContainerRect(const TRect& aRect);
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        /**
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        * @since 3.1
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        * @return
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        */
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        virtual TBool FullScreenMode() const;
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        /**
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        * @since 3.1
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        * @return
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        */
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        virtual void SetFullScreenMode(TBool aFullScreen);
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        /**
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        * @since 3.1
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        * @return
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        */
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        IMPORT_C static TBool HasOverlaySupport();
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    protected:
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        /**
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        * C++ default constructor.
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        */
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        CPageScaler();
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        /**
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        * By default Symbian 2nd phase constructor is private.
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        */
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        void ConstructL();
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    };
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#endif      // PAGESCALER_H
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// End of File