/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

#ifndef __WEBCOREGC

#define __WEBCOREGC

#include "bitstd.h"

#include "bitdev.h"

#include "WebCoreWidget.h"

struct TWebCoreSavedContext

    {

    TRect iClippingRect;

    TPoint iOrigin;

    TBool iHasClipping;

    MScrollView* iScrollView;

    };

//Wrapper class for CFbsBitGc

class WebCoreGraphicsContext : public CBase

{

public:

    static WebCoreGraphicsContext* NewL(CFbsBitmapDevice* aBitmapDevice, CFbsBitmap* aBitmap, MScrollView* aView);

    static WebCoreGraphicsContext* NewL(CFbsBitGc& aGc, CFbsBitmap* aBitmap, MScrollView* aView);

    virtual ~WebCoreGraphicsContext();

    CFbsBitmap* contentBuffer() const

        {

        return iOffscreenBitmap;

        }

    CFbsBitGc& gc() const

        {

        return *iBitmapContext;

        }

    MScrollView& view() const

        {

        return *iScrollView;

        }

    void resized()

        {

        iBitmapContext->Resized();

        }

    void setClippingRect(const TRect& aClip)

        {

        iHasClipping = ETrue;

        iClippingRect = aClip;

        iBitmapContext->SetClippingRect(iClippingRect);

        }

    TRect clippingRect() const

        {

        return iClippingRect;

        }

    TBool hasClipping() const

        {

        return iHasClipping;

        }

    void cancelClipping()

        {

        iHasClipping = EFalse;

        iBitmapContext->CancelClipping();

        }

    void setOrigin(TPoint aOrigin)

        {

        iOrigin = aOrigin;

        iBitmapContext->SetOrigin(iOrigin);

        }

    TPoint origin() const

        {

        return iOrigin;

        }

    TWebCoreSavedContext save()

        {

        TWebCoreSavedContext save;

        save.iClippingRect = iClippingRect;

        save.iHasClipping = iHasClipping;

        save.iOrigin = iOrigin;

        save.iScrollView = iScrollView;

        return save;

        }

    void restore(const TWebCoreSavedContext& aSave)

        {

        iBitmapContext->SetOrigin(aSave.iOrigin);

        iOrigin = aSave.iOrigin;

        if (!aSave.iHasClipping && iHasClipping)

            {

            iBitmapContext->CancelClipping();

            }

        else

        {

            iBitmapContext->SetClippingRect(aSave.iClippingRect);

            }

        iClippingRect = aSave.iClippingRect;

        iHasClipping = aSave.iHasClipping;

        }

    void setView(MScrollView& aView)

        {

        iScrollView = &aView;

        }

    protected:

        WebCoreGraphicsContext(CFbsBitmap* aBitmap, MScrollView* aView);

        void ConstructL(CFbsBitmapDevice *aBitmapDevice);

        void ConstructL(CFbsBitGc& aGc);

    private:

        CFbsBitGc* iBitmapContext;

        CFbsBitmap* iOffscreenBitmap;

        MScrollView* iScrollView;

        TBool iGcOwned;

        TRect iClippingRect;

        TPoint iOrigin;

        TBool iHasClipping;

};

#endif