/*

* Copyright (c) 2007-2009 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:  ESMR editor impl.

*

*/

#ifndef CESMREDITOR_H

#define CESMREDITOR_H

#include <eikrted.h>

#include <eikedwob.h>

#include "mesmrlistobserver.h"

class CESMRLayoutManager;

NONSHARABLE_CLASS( CESMREditor ): public CEikRichTextEditor,

                                  public MEikEdwinObserver

    {

public:

    /**

     * Two phase constructor.

     */

    IMPORT_C static CESMREditor* NewL();

    /**

     * Two phase constructor.

     *

     * @param aParent parent control

     * @param aNumberOfLines number of visible editor lines

     * @param aTextLimit limit for text length

     * @param aEdwinFlags flags for underlying CEikEdwin

     */

    IMPORT_C static CESMREditor* NewL(

            const CCoeControl* aParent,

            TInt aNumberOfLines,

            TInt aTextLimit,

            TInt aEdwinFlags );

    /**

     * Destructor.

     */

    IMPORT_C virtual ~CESMREditor();

public: // From CCoeControl

    IMPORT_C void PositionChanged();

    IMPORT_C TKeyResponse OfferKeyEventL(

    		const TKeyEvent& aKeyEvent,

    		TEventCode aType);

    IMPORT_C void FocusChanged(TDrawNow aDrawNow);

public: // From MEikEdwinObserver

    IMPORT_C void HandleEdwinEventL(CEikEdwin* aEdwin,TEdwinEvent aEventType);

public:

    /**

     * Clears selection and sets new text.

     *

     * @param aText new text

     */

    IMPORT_C void ClearSelectionAndSetTextL( const TDesC& aText );

    /**

     * Set font for editor.

     *

     * @param aFont new font

     * @param aLayout

     */

    IMPORT_C void SetFontL( const CFont* aFont, CESMRLayoutManager* aLayout );

    /**

     * Returns cursor line number.

     *

     * @return cursor line number

     */

    IMPORT_C TInt CursorLinePos() const;

    /**

     * Returns text line count.

     *

     * @return line count

     */

    IMPORT_C TInt LineCount() const;

    /**

	 * Set observer.

	 *

	 * @param aObserver pointer to observer

	 */

    IMPORT_C void SetListObserver( MESMRListObserver* aObserver );

    /**

     * Returns height of one row.

     *

     * @return row's height

     */

    IMPORT_C TInt RowHeight();

    /**

     * Returns line number of currenly 

     * focused row starting from one.

     * 

     * @return row's height

     */

    IMPORT_C TInt CurrentLineNumber();

    /**

    * Sets the default text for editor field

    * Ownership is transferred

    * @param aDefaultText default text.

    */

    IMPORT_C void SetDefaultTextL( HBufC* aDefaultText);

    /**

    * Returns the default text, if not set, KNullDesC is returned

    * @return TDesC default text

    */

    IMPORT_C const TDesC& DefaultText();

    /**

     * Returns the limited length

     * @return max length of field

     */

    IMPORT_C TInt GetLimitLength() const;

private:

    /**

     * Constructor.

     */

    CESMREditor();

    /**

     * Second phase constructor.

     *

     * @param aParent parent control

     * @param aNumberOfLines number of visible lines in editor

     * @param aTextLimit limit for editor text length

     * @param aEdwinFlags flags passed to underlying CEikEdwin

     */

    void ConstructL(

            const CCoeControl* aParent,

            TInt aNumberOfLines,

            TInt aTextLimit,

            TInt aEdwinFlags );

    void TryToSetSelectionL();

private:    

	/// Ref:

    MESMRListObserver* iObserver;

    /// Own:

    HBufC* iDefaultText;

    /// Own;

    TInt iLimitLength;

    };

#endif  // CESMREDITOR_H