// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// 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 __APGDOOR_H__

#define __APGDOOR_H__

#include <e32std.h>

#include <e32base.h>

#include <s32std.h>

#include <gdi.h>

#include <apparc.h>

#include <apadbase.h>

/**

@internalAll

*/

/** A wrapper for an embedded document that can be displayed in a user interface 

as an icon or a glass door. 

@publishedAll 

@released */

	{

public:

	IMPORT_C static CApaDoor* NewLC(RFs& aFs, CApaDocument& aDoc,const TSize& aDefaultIconSizeInTwips); // call to create a new door in iconic format - restoration is achieved with TApaPictureFactory

	IMPORT_C static CApaDoor* NewL(RFs& aFs, CApaDocument& aDoc,const TSize& aDefaultIconSizeInTwips); // call to create a new door in iconic format - restoration is achieved with TApaPictureFactory

	IMPORT_C static CApaDoor* NewL(RFs& aFs, const CStreamStore& aStore,TStreamId aStreamId,CApaProcess& aProcess); // restoring constructor called by TApaPictureFactory

	IMPORT_C void SetFormatToIconL();

	IMPORT_C void SetFormatToGlassL();

	IMPORT_C void SetFormatToTemporaryIconL(TBool aEnabled=ETrue);

	IMPORT_C CApaDocument* DocumentL(TBool aCheckPassword=EFalse); // returns a pointer to the doc, restoring it if necessary. Checks password if required.

	inline TDesC* Caption()const;

	IMPORT_C TUid AppUidL()const;

	// persistence methods

	IMPORT_C void RestoreL(const CStreamStore& aStore,TStreamId aHeadStreamId);

	TStreamId StoreL(CStreamStore& aStore) const;

	IMPORT_C ~CApaDoor();

	void DetachFromStoreL(TDetach aDegree=EDetachFull); //lint !e1735 Virtual function has default parameter - Must use the same default as declared by CPicture

	void GetOriginalSizeInTwips(TSize& aSize)const;

	void SetScaleFactor(TInt aScaleFactorWidth,TInt aScaleFactorHeight);

	void SetCropInTwips(const TMargins& aMargins);

	TPictureCapability Capability() const;

	void GetCropInTwips(TMargins& aMargins) const;

	TInt ScaleFactorWidth() const;

	TInt ScaleFactorHeight() const;

private:

	CApaDoor(RFs& aFs, CApaProcess& aProcess);

	CApaDoor(RFs& aFs, CApaDocument& aDoc,const TSize& aDefaultIconSizeInTwips);

	void ConstructL();

	void SetIconSizeInTwips(TSize aSize); // for use of factory

	void StoreDocL(CPersistentStore& aStore)const;

	void RestoreDocL(const CPersistentStore& aStore);

	void RestoreDoorStateL(const CStreamStore& aStore,const CStreamDictionary& streamDic);

	static CStreamDictionary* ReadStreamDictionaryLC(const CStreamStore& aStore,TStreamId aStreamId);

	static void CopyStoreL(const CEmbeddedStore& aSourceStore,RWriteStream& aTargetStream);

	void ExternalizeStateStreamL(CStreamStore& aStore,CStreamDictionary& aStreamDict)const;

	void InternalizeStateStreamL(const CStreamStore& aStore,const CStreamDictionary& aStreamDict,TSize aDefaultIconSize);

	// required so CPicture's can be swizzled

	void ExternalizeL(RWriteStream& aStream)const;

	TUid AppUidFromStreamL() const;

private:

	RFs& iFs;

	HBufC* iAppCaption; // name of the app used to create the embedded object

	CApaProcess* iApaProcess;

	CApaDocument* iApaDoc;

	CPicture* iPicture; // the current view of the door, either iconic or glass

	CEmbeddedStore* iStore; // store containing the doc

	CBufSeg* iStoreHost; // the host for the embedded store, if the door has been detached from its originating store

	friend class TApaPictureFactory;

	};

/** A factory class for instantiating and restoring an application's door.

A door factory object is constructed by the UI environment and can be accessed 

by calling CEikonEnv::PictureFactory().

@publishedAll

@released 

@see CEikonEnv::PictureFactory()

@see CApaDoor */

	{

public:

	IMPORT_C TApaPictureFactory(CApaProcess* aAppProcess);

	inline void SetIconSize(TSize aIconSizeInTwips);

	IMPORT_C void NewPictureL(TPictureHeader& aPictureHeader,const CStreamStore& aPictureStore)const; // used to create CApaDoor's during document restore only 

protected:

	IMPORT_C TApaPictureFactory();

private:

	CApaProcess* iApaProcess;

	TSize iIconSize;

	TInt iSpare;

	};

//

// inlines

//

inline TDesC* CApaDoor::Caption()const 

	{ return iAppCaption; }

inline void TApaPictureFactory::SetIconSize(TSize aIconSizeInTwips)

	{ iIconSize = aIconSizeInTwips; }