/*

* Copyright (c) 2007 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:  virtual class for compose view

*

*/

#ifndef __NCS_CONTROL_H__

#define __NCS_CONTROL_H__

#include <e32base.h>

#include <eiklabel.h>

#include "ncsfieldsizeobserver.h"

class CNcsEditor;

class CCoeControl;

// CLASS DECLARATION

/**

*  CNcsControl container control class.

*

*  @lib -

*  @since S60 v3.0

*/

class MNcsControl

    {

public: // constructor

    MNcsControl( MNcsFieldSizeObserver* aObserver );

public: // new functions

	virtual TInt LineCount() const = 0;

	virtual TInt ScrollableLines() const = 0;

	virtual TInt GetNumChars() const = 0;

	virtual TInt CursorLineNumber() const = 0;

	virtual TInt CursorPosition() const = 0;

	virtual void Reposition(TPoint& aPt, TInt aWidth) = 0;

    virtual const TDesC& GetLabelText() const = 0;

    virtual TInt LayoutLineCount() const = 0;

protected:

    MNcsFieldSizeObserver* iSizeObserver;

    };

class CNcsLabel : public CEikLabel, public MNcsControl

    {

public:

	CNcsLabel( const CCoeControl& aParent, MNcsFieldSizeObserver* aSizeObserver );

public:

	inline virtual TInt LineCount() const;

	inline virtual TInt ScrollableLines() const;

	inline virtual TInt GetNumChars() const;

	inline virtual TInt CursorLineNumber() const;

	inline virtual TInt CursorPosition() const;

	virtual void Reposition( TPoint& aPt, TInt aWidth );    

    inline virtual const TDesC& GetLabelText() const;

    TInt LayoutLineCount() const;

protected: // methods from base class

    virtual void HandleResourceChange( TInt aType );    

private: // methods used internally

private: // data

    void UpdateTextColor();

    const CCoeControl& iParent;

    };

#include "ncscontrol.inl"

#endif // __NCS_CONTROL_H__

// End of File