/*

* Copyright (c) 2003-2006 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:  Implementation class for TextField

*

*/

#ifndef CMIDTEXTFIELDEDWIN_H

#define CMIDTEXTFIELDEDWIN_H

// ========== INCLUDE FILES ================================

// CMIDEdwin inheritance in class declaration

#include "CMIDEdwin.h"

// ========== FORWARD DECLARATIONS =========================

// ========== CLASS DECLARATION ============================

NONSHARABLE_CLASS(CMIDTextFieldEdwin) : public CMIDEdwin, public MCoeControlObserver

{

public:

    static CMIDTextFieldEdwin* NewL(TInt aConstraints,const TDesC& aText,TInt aMaxSize,

    MMIDDisplayable* aDisplayable, CMIDTextFieldItem* aTextFieldItem=NULL);

    ~CMIDTextFieldEdwin();

    //

    // From MCoeControlObserver

    //

    void HandleControlEventL(CCoeControl* aControl,TCoeEvent aEventType);

    //

    // From CCoeControl

    //

    void SetContainerWindowL(const CCoeControl& aContainer);

    // from CMIDEdwin

    /**

     * Layouts the CMIDTextFieldEdwin relative to the parent.

     *

     * @param aRect the parent rect

     * @param aLayout multi line layout info

     */

    virtual void DoLayout(const TRect& aRect);

    void PositionChanged();

protected: // from CMIDEdwin

    void AddCommandToEdwinL(MMIDCommand& aCommand);

private: // Constructors

    /**

     * Constructor

     */

    CMIDTextFieldEdwin(TUint aConstraints, MMIDDisplayable* aDisplayable,

                       CMIDTextFieldItem* aTextFieldItem);

    /**

     * Second phase constructor

     * @param aText a text to be set in the field

     * @param aMaxSize maximum number of characters to allow

     */

    void ConstructL(const TDesC& aText, TInt aMaxSize);

#ifdef RD_SCALABLE_UI_V2

    /**

     * Calculate the rect for scrolling TextField text internally

     * @param   aParentRect parent rect from which to calculate scrolling area

     * @param   aLine   number of lines to deduct from scrolling

     * @param   aLayout multi line text layout

     * @return  rect that can be scrolled

     */

    TRect LineRect(TRect aParentRect, TInt aLine, TAknMultiLineTextLayout aLayout);

    /**

     * Set the rect for scrolling TextField text internally

     * @param   aEdwin  the editor

     * @param   aParentRect parent rect from which to calculate scrolling area

     * @param   aLayout multi line text layout

     * @param   aNumberOfLines  number of laid out lines

     */

    void SetThisScrollRect(CMIDTextFieldEdwin *aEdwin, TRect aParentRect, TAknMultiLineTextLayout aLayout, TInt aNumberOfLines);

#endif // RD_SCALABLE_UI_V2

    /**

    * Get the layout for the Edwin control relative to the parent rect where

    * the Edwin will be laid out

    *

    * @param aRect the parent rectangle where the Edwin is laid out

    * @param aNumLines how many lines will be displayed

    *

    * @return multi line layout structure

    * @note it changes the supplied rectangle leaving the margins for form2_midp_text_pane

    */

    TAknMultiLineTextLayout GetLayout(TRect& aRect, TInt aNumLines) const;

};

#endif // CMIDTEXTFIELDEDWIN_H