/*

* Copyright (c) 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:

*

*/

// EIKSBEXT.H

//

// This file contains extensions to classes declared in EIKSCRLB.H

//

#if !defined(__EIKSBEXT_H__)

#define __EIKSBEXT_H__

#if !defined(__EIKBCTRL_H__)

#include <eikbctrl.h>

#endif

#if !defined(__EIKSBOBS_H__)

#include <eiksbobs.h>

#endif

#if !defined(__AKNSCBUT_H__)

#include <aknscbut.h>

#endif

#include <lafpublc.h>

#include "eiksbfrm.h"

//

// class CEikScrollBarExtensionImpl

//

// This class is a abstarct class of which derivied class contains most of the

// logic of CEikScrollBar (and its derived classes). This class is declared as

// "C"-type class instead of "M"-type class because of legacy destruction sequence

// reasons.

//

class CEikScrollBarFrame;

class CEikScrollBar;

class MEikScrollBarObserver;

class CAknInfoPopupNoteController;

class CEikScrollBarExtensionImpl : public CBase

    {

public:

	virtual void SetLengthL(TInt aLength)=0;

	virtual void SetModelL(const TEikScrollBarModel* aModel)=0;

	virtual void SetModel(const TEikScrollBarModel* aModel)=0;

	virtual void SetLengthAndModelL(TInt aLength,const TEikScrollBarModel* aModel)=0;

	virtual void SetModelThumbPosition(TInt aThumbPos)=0;

	virtual void SetFocusPosToThumbPos(TInt aFocusPosition)=0;

	virtual TInt ThumbPosition() const=0;

	virtual TInt ScrollBarBreadth() const=0;

	virtual void SetDecreaseButtonsDimmed(TBool aDimmed)=0;

	virtual void SetIncreaseButtonsDimmed(TBool aDimmed)=0;

	virtual void SetAllButtonsDimmed(TBool aDimmed)=0;

	virtual void SetContainingCba(CEikCba* aCba)=0;

	virtual void DoSetModel(const TEikScrollBarModel* aModel)=0;

	virtual CEikCba* Cba() const=0;

	virtual void AddExternalFrameL(CEikScrollBarFrame* aFrame)=0;

	virtual void RemoveExternalFrame(CEikScrollBarFrame* aFrame)=0;

	virtual void DisconnectExternalFrames()=0;

	virtual void CreateRequiredComponentsL()=0;

	virtual void DestroyButton(CAknScrollButton*& aButton)=0;

	virtual void SetButtonPositionL(CAknScrollButton* aButton)=0;

	virtual TInt ScrollBarType()=0;

	virtual void SetScrollBarObserver(MEikScrollBarObserver* aScrollBarObserver)=0;

	virtual MEikScrollBarObserver* ScrollBarObserver()=0;

	virtual TBool HasModelChanged(const TEikScrollBarModel* aModel) =0;

private:

    virtual TInt Reserved_1()=0;

    virtual TInt Reserved_2()=0;

    };

//

// class CEikScrollBarExtension

//

// This class is an extension class for CEikScrollBar class. 

//

NONSHARABLE_CLASS(CEikScrollBarExtension) : public CEikScrollBarExtensionImpl

	{

public:

	CEikScrollBarExtension(CEikScrollBar* aParent);

    ~CEikScrollBarExtension();

	virtual void SetLengthL(TInt aLength);

	virtual void SetModelL(const TEikScrollBarModel* aModel);

	virtual void SetModel(const TEikScrollBarModel* aModel);

	virtual void SetLengthAndModelL(TInt aLength,const TEikScrollBarModel* aModel);

	virtual void SetModelThumbPosition(TInt aThumbPos);

	virtual void SetFocusPosToThumbPos(TInt aFocusPosition);

	virtual TInt ThumbPosition() const;

	virtual TInt ScrollBarBreadth() const;

	virtual void SetDecreaseButtonsDimmed(TBool aDimmed);

	virtual void SetIncreaseButtonsDimmed(TBool aDimmed);

	virtual void SetAllButtonsDimmed(TBool aDimmed);

	virtual void SetContainingCba(CEikCba* aCba);

	virtual void DoSetModel(const TEikScrollBarModel* aModel);

	virtual CEikCba* Cba() const;

	virtual void AddExternalFrameL(CEikScrollBarFrame* aFrame);

	virtual void RemoveExternalFrame(CEikScrollBarFrame* aFrame);

	virtual void DisconnectExternalFrames();

	virtual void CreateRequiredComponentsL();

	virtual void DestroyButton(CAknScrollButton*& aButton);

	virtual void SetButtonPositionL(CAknScrollButton* aButton);

    virtual TInt ScrollBarType();

    virtual void SetScrollBarObserver(MEikScrollBarObserver* aScrollBarObserver);

	virtual MEikScrollBarObserver* ScrollBarObserver();

	virtual TBool HasModelChanged(const TEikScrollBarModel* aModel);

private:

    virtual TInt Reserved_1();

    virtual TInt Reserved_2();

public: 

	CEikCba* iCba;

	CArrayFixFlat<CEikScrollBarFrame*> iExternalFrames;

	MEikScrollBarObserver* iScrollBarObserver;

private:

    CEikScrollBar* iParent;

    TInt           iSpare1;

    TInt           iSpare2;

    TInt           iSpare3;

	};

//

// class CAknDoubleSpanScrollBarExtension

//

// This class is an extension class for CAknDoubleSpanScrollBar class. 

//

NONSHARABLE_CLASS(CAknDoubleSpanScrollBarExtension) : public CEikScrollBarExtensionImpl

    {

public:

    CAknDoubleSpanScrollBarExtension(CEikScrollBar* aParent);

    ~CAknDoubleSpanScrollBarExtension();

    virtual void SetLengthL(TInt aLength);

    virtual void SetModelL(const TEikScrollBarModel* aModel);

    virtual void SetModel(const TEikScrollBarModel* aModel);

    virtual void SetLengthAndModelL(TInt aLength,const TEikScrollBarModel* aModel);

    virtual void SetModelThumbPosition(TInt aThumbPos);

    virtual void SetFocusPosToThumbPos(TInt aFocusPosition);

    virtual TInt ThumbPosition() const;

    virtual TInt ScrollBarBreadth() const;

    virtual void SetDecreaseButtonsDimmed(TBool aDimmed);

    virtual void SetIncreaseButtonsDimmed(TBool aDimmed);

    virtual void SetAllButtonsDimmed(TBool aDimmed);

    virtual void SetContainingCba(CEikCba* aCba);

    virtual void DoSetModel(const TEikScrollBarModel* aModel);

    virtual CEikCba* Cba() const;

    virtual void AddExternalFrameL(CEikScrollBarFrame* aFrame);

    virtual void RemoveExternalFrame(CEikScrollBarFrame* aFrame);

    virtual void DisconnectExternalFrames();

    virtual void CreateRequiredComponentsL();

    virtual void DestroyButton(CAknScrollButton*& aButton);

    virtual void SetButtonPositionL(CAknScrollButton* aButton);

    virtual TInt ScrollBarType();

    virtual void SetScrollBarObserver(MEikScrollBarObserver* aScrollBarObserver);

	virtual MEikScrollBarObserver* ScrollBarObserver();

	virtual TBool HasModelChanged(const TEikScrollBarModel* aModel);

	static TInt ScheduledDraw( TAny* aThis );

	void DoScheduledDraw();

private:

    virtual TInt Reserved_1();

    virtual TInt Reserved_2();

public:

    CAknDoubleSpanScrollIndicator* iScrollIndicator;

	CArrayFixFlat<CEikScrollBarFrame*> iExternalFrames;

    TRect iFixedLayoutRect;

    MEikScrollBarObserver* iScrollBarObserver;

    TInt iPointerDownOn;

    TInt iPointerDownPosition;

    TInt iPointerOffsetFromThumb;

    CAknInfoPopupNoteController* iPopupController;

    TBool iShowPopup;

    MEikScrollBarObserver* iOwningScrollBarObserver;

    TInt iScrollBarFlags;

    /** extension area type. */

    TInt iExtensionType;

    TBool iDragged;

    TTime iLastDrag;

private:

    CEikScrollBar* iParent;

    CIdle*         iActiveScheduledDraw;

    TInt           iSpare2;

    TInt           iSpare3;

    TEikScrollBarModel iPreviousModel;

    };

//

// class CEikScrollBarFrameExtension

//

// This class is an extension class for CEikScrollBarFrame class. 

//    

class CEikScrollBarFrameExtension

	{

public:

    CEikScrollBarFrameExtension();

    ~CEikScrollBarFrameExtension();

public: 

	CCoeControl* iParentWindow;

    CEikScrollBarFrame::SBarData iH;

    MEikScrollBarObserver* iScrollBarObserver;

	};

#endif