/*

* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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: smilregion  declaration

*

*/

#ifndef SMILREGION_H

#define SMILREGION_H

//  INCLUDES

#include <e32def.h>

#include <e32base.h>

#include "smiltextbuf.h"

#include "smillength.h"

#include "smilregioninterface.h"

// FORWARD DECLARATIONS

class CSmilPresentation;

class CSmilEvent;

class CSmilObject;

class CSmilArea;

// CLASS DECLARATION

class CSmilRegion : public CBase, public MSmilRegion

    {

    public:  // Constructors and destructor

		friend class CSmilRootRegion;

		/**

        * Two-phased constructor.

        */

        static CSmilRegion* NewL( CSmilPresentation* aPresentation );

        /**

        * Destructor.

        */

        virtual ~CSmilRegion();

    public: // New functions

		/**

		* Following methods are an implementation of MSmilRegion interface

		*/

		virtual TRect GetRectangle() const;

		virtual TRect GetRectangle(const CSmilMedia* aMedia) const;

		virtual TInt GetZIndex() const;

		virtual TFit GetFit() const;

		virtual TRgb GetBackground() const;

		virtual TRgb GetForeground() const;

		virtual TBgMode GetBackgroundMode() const;

		virtual TBool BackgroundTransparent() const { return iTransparent; }

		virtual void Redraw();

		virtual void Redraw(TRect iUpdate);

		virtual MSmilRegion* Parent() const;

		virtual MSmilRegion* Root() const;

		virtual void AddMediaL(CSmilMedia* aMedia);

		virtual void RemoveMedia(CSmilMedia* aMedia);

		virtual TBool ContainsMedia(const CSmilMedia* aMedia) const;

		virtual TBool IsRoot() const { return EFalse; }

		virtual void MediaTransitionEnd(CSmilMedia* aMedia);

		virtual CSmilMedia* MediaAt(const TPoint& aPoint,TBool aOnlyFocusable=EFalse);

		virtual CSmilArea* AreaAt(const TPoint& aPoint, TBool aOnlyFocusable=EFalse);

		enum TDirection { ELeft, ERight, ETop, EBottom, ETopTwoWay, EBottomTwoWay, EAll };

		/**

		* Calculate the region positions

		*/

		virtual void Layout(TReal32 aScalingFactor = 1);

		// drawing

		virtual void Draw(CGraphicsContext& aGc, const TRect& aRect);

		// child management

		virtual void AddChild(CSmilRegion* ) { }

		virtual CSmilRegion* FirstChild() const { return 0; } 

		virtual CSmilRegion* LastChild() const { return 0; }

		virtual void SetFirstChild(CSmilRegion*) { } 

		virtual void SetLastChild(CSmilRegion*) { } 

		virtual CSmilRegion* NextSibling() const { return iNext; }

		virtual CSmilRegion* PreviousSibling() const { return iPrevious; }

		//debug

		virtual void PrintTree(int d=0) const;

		// style attributes

		TSmilLength iWidth;

		TSmilLength iHeight;

		TSmilLength iTop;

		TSmilLength iBottom;

		TSmilLength iLeft;

		TSmilLength iRight;

		TInt iZIndex;

		TFit iFit;

		TRgb iBackground;

		TRgb iForeground;

		TBgMode iBackgroundMode;

		TBool iTransparent;

		TPtrC Id() const { return iId.Text(); }

		TPtrC Name() const { return iName.Text(); }

		void SetId(const TDesC& aId) { iId.SetTextL(aId); }

		void SetName(const TDesC& aName) { iName.SetTextL(aName); }

		RSmilTextBuf iId;

		RSmilTextBuf iName;		

	protected:

		virtual CSmilObject* FindNearest(const TPoint& aPoint, TDirection iDir, TInt& dist2);

		CSmilRegion(CSmilPresentation* aPresentation);

		//other

		CSmilPresentation* iPresentation;

		TRect iRect;

		TBool iDefaultLayout;

		struct MediaListItem

			{

			MediaListItem(CSmilMedia* aMedia) { iMedia=aMedia; iNext=0; }

			CSmilMedia* iMedia;

			MediaListItem* iNext;

			TRect iArea;

			};

		MediaListItem* iVisibleMedia;

		// child management

		CSmilRegion* iNext;

		CSmilRegion* iPrevious;

		CSmilRegion* iParent;

    };

#endif      // ?INCLUDE_H   

// End of File