/*

* 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:  ESMR subject field implementation

 *

*/

#ifndef CESMRSUBJECTFIELD_H

#define CESMRSUBJECTFIELD_H

#include <e32cmn.h>

#include <eikedwob.h>

#include "cesmrfield.h"

#include "nmrbitmapmanager.h"

class CESMREditor;

class MESMRTitlePaneObserver;

class CMRImage;

class CAknsBasicBackgroundControlContext;

/**

 * This class is a custom field control that shows the subject of calendar events

 */

NONSHARABLE_CLASS( CESMRSubjectField ) :

        public CESMRField,

        public MEikEdwinSizeObserver,

        public MEikEdwinObserver

    {

public:

    enum TFieldType

        {

        ETypeSubject = 0,

        ETypeOccasion

        };

    /**

     * Creates new CESMRSubjectField object. Ownership

     * is transferred to caller.

     * @return Pointer to created object,

     */

    static CESMRSubjectField* NewL( TFieldType aType = ETypeSubject );

    /**

     * Destructor.

     */

    virtual ~CESMRSubjectField();

public: // Interface

    void SetTitlePaneObserver( MESMRTitlePaneObserver* aObserver );

protected: // From CESMRField

    TSize MinimumSize();

    void InitializeL();

    void InternalizeL( MESMRCalEntry& aEntry );

    void ExternalizeL( MESMRCalEntry& aEntry );

    void SetOutlineFocusL( TBool aFocus );    

    void GetCursorLineVerticalPos(TInt& aUpper, TInt& aLower);

    void ListObserverSet();

    TBool ExecuteGenericCommandL( TInt aCommand );

protected: // From MEikEdwinSizeObserver

    TBool HandleEdwinSizeEventL( CEikEdwin* aEdwin, TEdwinSizeEvent aType, TSize aSize );

protected: // From MEikEdwinObserver

    void HandleEdwinEventL(CEikEdwin* aEdwin,TEdwinEvent aEventType);

protected: // From CCoeControl

    TInt CountComponentControls() const;

    CCoeControl* ComponentControl( TInt aInd ) const;

    void SizeChanged();

    void SetContainerWindowL( const CCoeControl& aContainer );

    TKeyResponse OfferKeyEventL( const TKeyEvent& aEvent, 

                                       TEventCode aType );

private:

    /**

     * Constructor.

     */

    CESMRSubjectField();

    /**

     * Second phase constructor.

     *

     * @param aId field id

     * @param aTextId default text id

     * @param aIconID icon id

     */

    void ConstructL( 

            TESMREntryFieldId aId, 

            TInt aTextId, 

            NMRBitmapManager::TMRBitmapId aIconID );

    void SetPriorityIconL( TUint aPriority );

private:

    // Not owned. Text editor.

    CESMREditor* iSubject;

    // Own: Field icon

    CMRImage* iFieldIcon;

    // Own: Priority icon

    CMRImage* iPriorityIcon;

    // Own: Edwin size

    TSize iSize;

    // Not owned

    MESMRTitlePaneObserver* iTitlePaneObserver;

    // Field editor line count

    TInt iLineCount;

    // Own: Background for the editor when it is focused

    CAknsBasicBackgroundControlContext* iBgControlContext;

    // Stores current priority value 

    TUint iCurrentPriority;

    };

#endif  // CESMRSUBJECTFIELD_H