// Copyright (c) 2000-2009 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:

//

#ifndef __HLPPICT_H__

#define __HLPPICT_H__

// System includes

#include <e32std.h>

#include <d32dbms.h>

#include <s32file.h>

#include <badesca.h>

#include <gdi.h> // for CPicture

// User includes

#include "HLPMODEL.H"

// Classes Referenced

class CHlpDatabase;

// Constants

const TUid KUidHelpImage = { 0x100068D4 };

//

// ----> CHlpPicture (header)

//

class CHlpPicture : public CPicture

	/**

	This class provides the means for restoring bitmaps from a multiple

	bitmap file, scaling them and drawing them on the screen.

	@publishedAll

	@class CHlpPicture

	@since 7.0

	@see CPicture, CStreamStore, TStreamId, CHlpModel,

				  CGraphicsContext, RWriteStream, CHlpDatabase

	*/

	{

//

public: // CONSTRUCT / DESTRUCT

//

	static CHlpPicture* NewLC(const CStreamStore& aStore, TStreamId aStreamId, CHlpDatabase& aDatabase, CHlpModel& aHlpModel);

	~CHlpPicture();

	void HandleHelpModelDestruction();

//

public: // FROM CPicture

//

	void Draw(CGraphicsContext& aGc, const TPoint& aTopLeft, const TRect& aClipRect, MGraphicsDeviceMap* aMap) const;

	void ExternalizeL(RWriteStream& aStream) const;

	void GetCropInTwips(TMargins& aMargins) const;

	void GetOriginalSizeInTwips(TSize& aSize) const;

	void SetScaleFactor(TInt aScaleFactorWidth, TInt aScaleFactorHeight);

	void SetCropInTwips(const TMargins& aMargins);

	TInt ScaleFactorWidth() const;

	TInt ScaleFactorHeight() const;

//

public: // Handles changes in zoom size

//

	void HandleZoomChangedL(THlpZoomState aNewZoom);

//

private: // INTERNAL CONSTRUCT

//

	CHlpPicture(CHlpDatabase& aDatabase, CHlpModel& aHlpModel);

	void ConstructL(const CStreamStore& aStore, TStreamId aStreamId);

//

private: // INTERNAL METHODS

//

	void RestoreL(const CStreamStore& aStore, TStreamId aStreamId, CHlpDatabase& aDatabase, THlpZoomState aZoomState);

//

private: // MEMBER DATA

//

	// Variable to represent the bitmap to be restored from the image table

	CFbsBitmap* iImage;

	// Reference to a 'CHlpDatabase' object

	CHlpDatabase& iDatabase;

	// Stores the ID of every image that is accessed

	TInt iImageId;

	// Pointer to a 'hlpmodel' object

	CHlpModel* iHlpModel;

	// Stores the number of bitmaps per picture

	TInt iImageCountForPicture;

	};

#endif